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0.2 (95-dec-12)
---------------
First public release.
0.3 (96-jan-13)
---------------
LZW patent workaround.
Implemented inline images.
Fixed (mostly) disjoint polygon fills.
Added remote server stuff.
Added page number on command line.
Fixed problem with font encodings which caused character misalignment.
Fixed inverted CCITT decoding and inverted image mask drawing.
Now compiles under gcc 2.7.x (ignore those stupid 'unused parameter'
warnings).
Many minor bug fixes and optimizations.
0.4 (96-apr-24)
---------------
Implemented DCT filter.
Implemented PostScript output; wrote pdftops program.
Implemented links.
Implemented font rotation -- I was wrong: X11R6 servers *do* support
font rotation (by specifying a matrix in place of a size).
Added bindings for Home/End, Page Up/Down, arrow keys.
Added initialZoom resource and -z option.
Added geometry resource and -g option.
Fixed image size off-by-one bug.
Fixed bug where page content is reference to an array of streams.
Cleaned up uninitialized variables which were causing random problems
on various platforms.
Manually skip whitespace before calling atoi() for startxref.
Replaced calls to XrmCombineFileDatabase() with calls to
XrmGetFileDatabase() and XrmMergeDatabases() so it will work under
older versions of X.
Fixed problem with reading multiple xref tables in updated PDF files.
Check for encryption and print appropriate error message.
Rudimentary dithering of images.
Fixed bug in CCITTFax filter (pass mode followed by horizontal mode).
Optimized drawImage() and drawImageMask().
Changed several things to ease porting:
- changed '__inline' to 'inline' (to adhere to the ANSI standard)
- surrounded interface/implementation pragmas with #ifdef _GNUC__
- got rid of empty array initializer lists
- moved Operator type definition from Gfx.cc to Gfx.h
- renamed String, uint, etc.
- ability to uncompress to file (NO_POPEN and USE_GZIP flags)
- added definitions of XK_Page_Up/Down and XPointer for old versions
of X
For VMS port:
- use correct Xdefaults name for VMS, get rid of ltkGetHomeDir()
- added '#include <stddef.h>' before all X includes
- renamed files with multiple periods in their names
Fixed window resizing infinite oscillation bug.
Fixed problem with string-type (as opposed to stream-type) indexed
color space lookup tables (which are used in inline images).
If an X font is not found, try smaller and then larger sizes (this is
useful for old or broken X servers which can't scale bitmap fonts).
Added -rgb (color cube size) option.
Various minor bug fixes.
0.5 (96-may-23)
---------------
Fixed bug in LTKWindow which broke the remote server mode.
Fixed PostScript output:
- doesn't seg fault if file is unwritable.
- incorrect DSC comment - need colon in '%%Page:'.
- use 'imagemask' command for masks.
- output filters in the correct order.
- Stream::isBinary() checks the next-to-bottom, not top, stream.
- if page width > height, rotate it 90 degrees.
- if page is larger than paper size, scale it down.
Set default MediaBox to 8.5" x 11" to deal with non-compliant PDF
files which don't specify a MediaBox.
Added DEBUG_MEM stuff in gmem.c and gmempp.cc.
Fixed memory leaks:
- LTKWindow didn't delete the LTKBox.
- LinkAction needs a virtual destructor.
Use $(RANLIB) variable in goo/Makefile and ltk/Makefile.
Allocate image data after calling XCreateImage, using
image->bytes_per_line -- works in 24-bit mode now.
DCTStream rounds width of rowBuf lines up to the next multiple of
mcuWidth, so last MCU doesn't run off end of buffer.
Increase size of block (from 255 to 1024 bytes) read at end of file to
search for 'startxref'.
Skip past garbage at start of file, look for '%PDF'.
Moved more compiler options out of Makefiles into Makefile.config.
Top-level Makefile uses '$(MAKE)' instead of 'make' for making
subdirectories.
Space/PageDown/Next and Backspace/PageUp/Previous now moves to
next/previous page if already scrolled to bottom/top of current
page.
0.5a (96-jul-09)
----------------
[not a public release]
For PDF 1.2 (a.k.a. Amber, a.k.a. Acrobat 3) support:
- look for trailer after first xref instead of at end of file.
Deal with font subsets by converting character names of the form
'Cnnnn' to the appropriate character from the standard encoding.
Extract encoding from embedded Type 1 fonts.
Kludge to fill one-pixel thick polygons.
Changed X font encoding to use endash for hyphen (gets rid of too-long
hyphens).
Handle Resources key in Pages dictionaries (needed for pstoedit
output).
Fix comment handling in Parser (needed for pstoedit output).
Move Bezier curve conversion from GfxState to XOutputDev; look at
flatness parameter in GfxState.
Change all of the path functions in XOutputDev (stroke, fill, clip) to
use the same path transformation/conversion function.
Rewrote PostScript output driver as a subclass of OutputDev; removed
duplicated code (ps_ functions) from Gfx.
Fixed bug in xref code with small (< 1024 bytes) PDF files.
Implemented BX/EX operators.
Added PDFDoc class.
0.6 (96-nov-12)
---------------
Add support for PostScript output to stdout (-) and to a command
(|lpr); added -ps option and psFile resource.
Decryption is implemented but not included in the distribution due to
legal restrictions: the decryption algorithm is a trade secret of
RSA, Inc., and the U.S.A. still has bogus export controls on
cryptography software.
Added .xpdfrc config file:
- Added fontmap parameter: user can map PDF font names to X fonts.
- Added fontpath parameter: search for Type 1 font if encoding is
not in PDF file.
Incremental display: display is updated after every 200 commands.
Added forward and backward by-10-page buttons.
Links:
- Implement links with "Launch" actions that point to PDF files.
- Draw borders around links.
- Handle links with named destinations.
- GoToR links specify a page number instead of a page reference.
Optimizations:
- Rewrote Stream to use buffering, and added lookChar() functions;
rewrote Lexer to take advantage of this.
- Use hash tables for name->code mapping in font encodings.
- Made XOutputDev::doCurve() iterative, changed /2 to *0.5, and
changed the flatness test.
Added file name to window title.
Implemented RunLength filter.
Implemented forms.
Convert ObjType to an enum.
Changed isDict("Pages") to isDict() (in Catalog.cc) to deal with
incorrect PDF files.
Changed color selection so that very pale colors don't map to white.
Fixed bug in CCITTFax filter (multiple make-up codes).
In GString::clear(): need to set length to 0 before calling resize().
Base initial window size on first displayed page, not page 1; deal
correctly with rotated pages.
Added ltkGetIntResource() and LTKApp::getIntResource().
PostScript output fixes:
- Escape backslashes in strings.
- When doing ASCII85 encoding, keep both chars of EOF marker ('~>')
on same line.
- Add extra line '%-EOD-' after image data streams; call wrapper
functions for image and imagemask which look for this line -- this
should fix the 'too much data in stream' bug.
- Font tags can be reused for different fonts on different pages --
so use font object reference (number/generation) instead.
Initialize character widths to zero (this caused crashes on OSF/1).
Handle image masks which go outside of pixmap.
Makefile.config changes:
- Remove -o in C++ compile rule.
- Add $(AR) variable.
Code which read char widths from font dictionary read all but the last
width.
Add 'return 0;' to main() in xpdf and pdftops.
Allow fonts to use StandardEncoding.
Convert man pages to VMS help files.
0.7 (97-may-28)
---------------
Implemented FlateDecode filter (for PDF 1.2).
Basic xref table reconstruction for damaged files
New pdftotext program converts PDF to plain text.
Implemented menus in LTK; added a menu to xpdf.
Added open and save functions; allow xpdf to start without any PDF
file.
Implemented text find.
Implemented text select/copy.
Change mouse cursor when it's over a link.
Embed Type 1 fonts in PostScript output.
Moved rotate functions to menu; added quit to menu.
Fixed stroke color bug in PostScript output (was using fill color
instead of stroke color; this sometimes caused lines to be missing
(white) in PostScript output).
Support Launch-type links -- pops up a dialog before executing
anything. Expects the A (action) dictionary to contain a Unix
dictionary with F (file) and P (paremeter) keys just like the Win
dictionary.
A moveto op all by itself should just be discarded, instead of
generating a subpath with one point (this was causing seg faults).
Balanced parentheses in strings don't need to be escaped.
Tj operator in PostScript prolog didn't check for zero when dividing
by length of string.
Implemented selection in LTK; TextIn widgets support dragging/copy/
paste.
Handle font subsets that use hex character codes.
Added icon pixmap; added the XPMLIB and NO_XPM variables to
Makefile.config.
Fixed subtle bug in use of horizontal scaling parameter (it affects
only the width of drawn characters, not positioning done in text
space).
Memory testing (with DEBUG_MEM):
- gmalloc now fills memory blocks with garbage to catch unitialized
fields.
- gfree fills memory blocks with garbage to catch uses of freed
blocks.
Handle image masks which go off the pixmap on the top and/or left.
Fixed inline functions which had two return statements (to make the
HP, SCO, and other cfront-based compilers happy).
Fixed bug which caused seg faults when following a link to a different
file (info in LinkGoto object was used after link was deleted by
loadFile).
If page content is an array of streams, the streams are concatenated;
objects and commands can span multiple streams.
If file open fails, try lower-casing and upper-casing the file name.
Commands should end when lexer sees a '/' character.
GString::append(char *, int) was broken.
Changed LTKScrollingCanvas redraw to be more efficient: copy as much
as possible from window before copying from off-screen pixmap.
Ignore gs (set extended graphics state) operator.
Handle colorspaces (CalGray/RGB are treated as DeviceGray/RGB; the
weird colorspaces are not yet implemented).
Named destinations (for links) can be strings as well as names; deal
with the names tree in the catalog.
Clip to the page CropBox.
Added '-q' to gzip options (to suppress warnings, in case user has -v
in GZIP env var).
Added 'include Makefile.config' to top-level Makefile.
Added INSTALL variable to Makefile.config; used in top-level
Makefile.
Always initialize LinkDest left/bottom/top/right/zoom fields (bogus
floating point values were causing crashes on Alpha).
Added Makefile.config options for Digital Unix (DEC compilers), HP-UX
(HP compilers), SCO Unix, and Evans & Sutherland ES/OS.
Added flag to set stream mode in fopen call for VMS.
Rewrote Link module.
Pages with no contents shouldn't cause an error message.
In PostScript output: pdfImM needs to set fill color before doing
imagemask.
If font doesn't specify character widths, use widths from built-in
font, based on font flags.
Fixed LTK scrollbar to delay before repeating and to control the
period between repeats.
Removed window/widget copy() methods (they were untested and unused).
Unknown filter types produce a single error message instead of a
stream of errors.
Added a dummy target in top-level Makefile so making individual
executables (e.g., 'make pdftops') should now work.
Added optional xpdf-flip.ltk with buttons on right side instead of
bottom of window.
0.7a (98-feb-22)
----------------
Moved find command from menu to toolbar button ('f' key still works).
Support TrueColor visuals.
Added a -cmap option and a installCmap resource to install a private
colormap.
Mouse button 2 pans the window.
Selecting a URI link now executes a configurable command (from the
urlCommand resource).
Added a "link info" display which shows the URL or file for the link
under the mouse.
Don't draw (or convert to PostScript) text drawn in render modes 3 and
7 -- this is invisible text, used by Acrobat Capture; this text is
still passed to the TextPage object so that selection works.
Recognize (and quietly ignore) marked content operators (BMC, BDC,
EMC, MP, DP).
Recognize new color-setting operators (scn, SCN).
Added A4_PAPER option.
Embed external Type 1 font files (this currently only works with PFA
files).
Added "-level1" option (in xpdf and pdftops) to generate Level 1
PostScript.
Setup autoconf -- replaced Makefile.config. Added SELECT_TAKES_INT
flag, and use configure to autodetect (for HP-UX).
Fixed appendToPath() to behave reasonably when appending ".." to root
directory.
Fixed array size in FlateStream::compHuffmanCodes() (was causing xpdf
to crash under OSF/1).
ASCII85Stream, ASCIIHexStream, and DCTStream didn't check for EOF and
could run past the end of the stream in damaged files.
Handle hex escapes (#xx) in names. Still allow the name /# for
backward-compatibility.
Check for NULL characters in encoding array in GfxFont.cc (was calling
strcmp() with NULL which crashed under Solaris).
PageAttrs::PageAttrs() didn't initialize crop box boundaries.
Changed uses of lookup() to lookupNF() in XRef.cc.
Fixed type checking of operators which take a variable number of
args.
Gfx::buildImageStream() doesn't need to check for parser (since I got
rid of the bogus array-of-command thing).
XOutputFont matches on font reference instead of font tag (similar to
PSOutputDev fix).
Fixed bug in position calculation for multi-char substitutions in
XOutputDev.
Cleaned up local variables which hid class variables.
Optimized variable length decoding in CCITTFaxStream.
Set link border width to zero if Border dictionary entry is missing.
Throw away zero-length strings in TextOutputDev -- they don't have
valid xMin/xMax values.
Swapped order of XLIBS and XPMLIB in xpdf/Makefile.
Deleted 'LTKApp::' in function declaration in LTKApp.h.
Changed '(XKeyEvent *)&event' to '&event.xkey' in LTKApp.cc.
Check that the link rectangle coordinates are in the correct order,
and swap if necessary.
TextOutputDev didn't set text to NULL, which caused pdftotext to
segfault if it couldn't open it's output file.
Fixed a hash table search bug in GfxFontEncoding::getCharCode().
Cleaned up colorspace code: rewrote GfxColorSpace and added
GfxImageColorMap; cleaned up PSOutputDev::doImage.
Handle named colorspaces in images.
Correctly set the default color after a colorspace change.
Old setcolor operators now set the colorspace.
Fixed bug with uncompressed blocks in FlateStream.
Fixed bug with fixed Huffman code table in FlateStream.
Added hash table of X windows (for LTKWindow and LTKWidget) to LTKApp
and replaced calls to XQueryTree with hash table searches -- this
avoids a roundtrip to the server for each event and also fixes the
problem where XQueryTree crashed if the window no longer existed
(with leftover events from a destroyed window). (Thanks to Yair
Lenga for the suggestion.)
Create a new GC for selection -- xor black and white (instead of LTK
foreground and background).
Fixed crash with blank lines in .xpdfrc.
Allow spaces in font descriptors in fontmap lines in .xpdfrc.
Check for bogus object number in XRef::fetch().
Use MacRomanEncoding for TrueType fonts that don't specify an
encoding.
Certain PDF generators apparently don't include FontDescriptors for
Arial, TimesNewRoman, and CourierNew -- set GfxFont flags
appropriately.
Fixed a bug in width guessing in GfxFont -- sans serif and serif were
swapped.
Rewrote XRef::readXRef() to avoid using a parser to read the xref
entries.
Added NO_TEXT_SELECT option.
Ignore APPn/COM/etc. markers in DCT streams.
Replaced select() with XMultiplexInput() in LTKApp.cc for VMS.
Handle WM_DELETE_WINDOW protocol -- if you ask the window manager to
delete the xpdf window, xpdf will exit cleanly; other
windows/dialogs are simply closed.
Optimized DCT decoder; switched to integer arithmetic.
The "/Type /Annots" field in an annotation dictionary is optional.
Check for null nameTree in Catalog::findDest().
In XOutputDev, search user font map before default font map.
Added "normal" SETWIDTH parameter to all font descriptors in
XOutputDev (some systems have a narrow-width Helvetica font).
Added FOPEN_READ_BIN and FOPEN_WRITE_BIN to support Win32.
Added a hack which allows better font substitution for some Type 3
fonts. Also allow character names of the form /nn and /nnn.
Added <strings.h> and <bstring.h> to LTKApp.cc (needed by AIX and IRIX
for bzero() declaration for FD_ZERO).
0.80 (98-nov-27)
----------------
Support for some Japanese fonts (Type 0 fonts using the Adobe-Japan1-2
character collection, horizontal only).
Added pdfinfo application.
Added pdftopbm application.
Added pdfimages application.
Added -papercolor option and .paperColor resource.
Fixed divide-by-zero problem in XOutputDev Type 3 font matrix kludge.
Font subset char names can be 'Bxx' as well as 'Cxx' and 'Gxx'.
Fixed bug in color space conversion in DCTStream filter (YCC->RGB was
correct, YCCK->CMYK was broken).
Added XRef::getDocInfo() and PDFDoc::getDocInfo() to support pdfinfo.
Optimized GfxImageColorMap.
Lexer::getStream(), getPos(), and setPos() check for null stream.
Decryption code now does strings as well as streams.
ASCII85 decoder rounds short tuples up instead of down.
CropBox and MediaBox can be non-integers.
PostScript output:
- Use a rectangle operator.
- Call setpagedevice with page size.
- Insert %%PageOrientation comments.
- Add paper size flags (-paperw and -paperh) to xpdf and pdftops.
- If HAVE_POPEN is not defined, and user tries to print to '|...',
the PSOutputDev destructor tried to write to the PS file.
- Added support for forms (pdftops -form).
Removed error messages for empty paths in stroke, fill, etc. operators.
Don't allow flatnesses less than 1 in XOutputDev (this speeds up
rendering a little bit when there are lots of tiny curves).
Moved the font subset character name guessing from GfxFont to
XOutputDev and TextOutputDev - now these files print correctly.
Cast argument to XFree() to XPointer; add XPointer definition where
necessary (portability fixes).
Various minor VMS fixes.
Changes to configure script and Makefiles:
- Print a warning if X is missing.
- Use C++ when checking select() argument type (HP-UX).
- Use 0 instead of NULL when checking select().
- Default to gcc instead of c++.
- Get rid of AC_C_INLINE -- this is meant for C, not C++.
- Changed -USE_GZIP to -DUSE_GZIP.
- Added ability to compile ouside of the source tree.
- Added .cc.o rule to {goo,ltk,xpdf}/Makefile.in.
- Added @LIBS@ to XLIBS in xpdf/Makefile.in.
- In top-level Makefile.in: added '-' to clean commands; added
distclean rule.
- Create install directories.
- Use INSTALL_DATA (instead of INSTALL) for man pages.
- Changed xpdf-ltk.h rule to avoid leaving an empty file when
ltkbuild fails.
- Change things so that by default, ltkbuild is not built and
xpdf-ltk.h is not rebuilt.
- Use AM_PROG_CC_STDC to add compiler flags for ANSI C.
- Modify autoconf's builtin macros to check for xlC.
- Use Steve Robbins' smr_CHECK_LIB to test for pixmap library (Xpm)
-- this should fix the problems on systems that have the library
but not the include file.
- Added better test for sys/select.h, sys/bsdtypes.h, strings.h,
bstring.h.
- New VMS make scripts from Martin P.J. Zinser.
- Moved dependences into Makefile.in -- this gets rid of problems
with 'cc -MM' (which is gcc-specific) and 'include Makefile.dep'
(which isn't supported by all make implementations). Also changed
all non-system include files to '#include "..."' (from '<...>').
Tweaked the TextOutputDev heuristics slightly.
Modify Gfx to use a stack of resources -- this is necessary for Form
XObjects, which can define their own local resources; also modified
PSOutputDev to dump fonts used by forms.
Look for excessively large MediaBox (compared to CropBox) and shrink
it to CropBox.
Minor fix to scrolling when dragging a selection.
Various patches for pdftex and Win32 support.
Deal with Separation colorspaces by using their alternate colorspace
entry.
Added PBMOutputDev for pdftopbm application.
Added ImageOutputDev for pdfimages application.
Separated XOutputDev into LTKOutputDev + XOutputDev.
Added support for 1-D and mixed 1-D/2-D (Group 3) decoding to
CCITTDecode filter.
Added resetImage(), getImagePixel(), and skipImageLine() to Stream
class; used these in XOutputDev, PSOutputDev, and ImageOutputDev.
Implemented predictor for LZW and Flate filters.
In pdfImM1 in PSOutputDev prolog: div should be idiv.
Changed output from printUsage() function in parseargs to look nicer.
0.90 (99-aug-02)
----------------
Added Type 1/1C font rendering, using t1lib.
Added "backward" and "forward" buttons.
Added fit-page and fit-page-width zoom factors; replaced zoom-in and
zoom-out buttons with a zoom popup menu.
Type 1C fonts are converted to Type 1 and embedded in PostScript.
Support vertical Japanese text.
Added Japanese text support (EUC-JP) to pdftotext.
Bumped PDF version to 1.3. Added stub functions for ri and sh
operators. (But there are still some missing 1.3 features.)
Added -raw option to pdftotext.
Minor changes to allow compiling under MS Visual C++ 5.0.
Top-level makefile: changed 'mkdir -p' to '-mkdir -p'.
Configure script: added X_CFLAGS to smr_CHECK_LIB(Xpm).
Added Xpm_CFLAGS to xpdf/Makefile.in (this is needed to get the -I for
the xpm includes).
Rewrote code that handles font encodings; added support for Type 1C
fonts.
In the setpagedevice dictionary in PostScript output - added a
/Policies entry which tells the PS interpreter to scale the page to
fit the available paper.
Changed PageUp behavior slightly: move to bottom (instead of top) of
previous page.
TextPage used character's dx (width + char space) instead of just its
width.
Read base URI from document Catalog (for URI-type links).
Minor change to configure script to avoid using 'unset'.
Fixed bugs in CropBox inheritance.
Fixed a bug in resource stack handling for form objects.
Display forms even if they have a missing/incorrect FormType.
Fixed a bug in stream predictors -- the predictor parameters (width,
comps, bits) don't need to match the actual image parameters.
Completely rearranged the predictor code.
Fixed PostScript output to correctly handle stream predictors.
Don't segfault on empty (zero-page) documents.
Added the xpdf.viKeys feature.
Added the ffi and ffl ligatures to XOutputDev and TextOutputDev.
Pdftotext and pdfimages now check okToCopy().
Added a '-q' flag to all programs (except pdfinfo) to suppress
messages and errors.
Deal with DeviceN colorspaces by using their alternate colorspace
entry.
Change PostScript output so setpagedevice is only called once, at the
very beginning of the document (to avoid problems on duplex
printers).
Changes to configure script and makefiles for DOS/DJGPP.
FontEncoding::getCharCode() looked for (code>0) instead of (code>=0).
Added keypad arrow keys, etc. to xpdf.
Minor changes to gfile.{h,cpp} (<windows.h>) to compile under VC++.
Fixed CCITTFaxStream to correctly handle all parameters.
Modifications to gfile.{h,cc} for Acorn.
Some minor changes for OS/2.
Added 'SHELL = /bin/sh' to Makefiles.
Compare file version to pdfVersionNum+0.0001 to avoid floating point
precision problems.
Added LDFLAGS to Makefiles.
Removed strip entirely from configure and Makefiles.
Fixed a bug in choosing the correct DCTStream color transform.
0.91 (2000-aug-14)
------------------
Added TrueType font rendering, using FreeType.
Support for Chinese fonts (Type 0 fonts using the Adobe-GB1-2
character collection).
Decryption code is included with the main distribution (now that the
US export regulations are a little bit less irrational).
Added (very basic) support for generating PostScript with Japanese
fonts -- only tested with ghostscript so far.
Added support for generating EPS files (pdftops -eps).
Much-improved image filtering in xpdf (for downsampling and for
transforms other than 0/90/180/270-degree rotations).
Implemented a basic full-screen (presentation) mode (xpdf
-fullscreen). (There is currently no way to switch between window
and full-screen modes on the fly -- this will be fixed in a later
release.)
Added "reload" menu item.
Do a better job with anti-aliased Type 1 fonts on non-white
backgrounds.
Handle Lab color spaces.
Handle non-null user passwords.
Avoid security hole with tmpnam()/fopen() -- added openTempFile() in
goo/gfile.cc. [Thanks to Joseph S. Myers for pointing this out.]
Filter out quote marks (' and ") in URLs before running urlCommand to
avoid a potential security hole. [Thanks to Frank Doepper for
pointing this out.]
Fixed TrueColor detection to look at the complete list of available
visuals, not just the default visual.
In gfile.h, changed NAMLEN(dirent) macro to NAMLEN(d).
Removed copyright character from start-up banners.
In the open and save dialogs, if the open/save button is pressed with
no file name, the dialog is not canceled.
Added Xpm_CFLAGS to ltk/Makefile.
XOutputDev::updateLineAttrs was using dashLength before it was
defined.
In top-level Makefile.in, use INSTALL_PROGRAM instead of INSTALL.
In man page, recommend -q instead of -err in .mailcap.
Changes for GNOME / Bonobo support:
- Separated Stream classes into BaseStream and FilterStream trees.
- Got rid of all FileStream-specific stuff.
- Added a PDFDoc constructor that takes a BaseStream* instead of a
file name.
Allow newlines inside strings (Photoshop does this).
Don't require whitespace between tokens in consecutive content
streams (for pages that specify an array of streams).
Look at MissingWidth when constructing font character widths array.
Fixed a bug that caused incorrect PostScript output for images that
use 8-bit indexed color spaces with < 256 colors in the palette.
Handle case where embedded font file is bad (this was seg faulting).
Minor changes for Windows/pdftex.
Work around a bug in PDF files from the IBM patent server.
Fixed bugs in PostScript form generation: use pdfStartPage instead of
pdfSetup; problem with inline images.
Minor bug fix in FlateStream::loadFixedCodes().
Added %%DocumentMedia and %%PageMedia comments to the PostScript so
that gsview (a Windows frontend for ghostscript) gets the right
paper size.
Draw AcroForm fields that have appearance annotations.
Bounds check gray, CMYK, and RGB values (in GfxColor).
Moved the link border drawing code into Page (from PDFDoc).
Minor modifications for pdftohtml.
PSOutputDev: use the Type 3 font scaling kludge from XOutputDev.
Separation color spaces were handled incorrectly in images.
Fixed a bug with form bounding boxes.
Modified the t1lib support -- replace libt1x code with my own code.
Type 1 and TrueType fonts are now handled similarly, and clipping
works on Type 1 fonts.
Don't print copyright banner (xpdf); add -v switch to get copyright
and version info (all apps); get rid of -err switch (xpdf).
Automatically reload the PDF file if it has been changed, i.e., if the
modification time is different.
Fixed a memory (malloc size) bug in CCITTFaxStream.
Fixed two bugs in FontEncoding::hash() -- handle zero-length character
names (which were found in a (buggy?) PDF file), and handle
character names with high-bit-set characters (use unsigned ints).
Added PDFDoc::isLinearized() and corresponding code in pdfinfo.cc.
Handle files with an incorrect page count in the Pages dictionary
(FOP, from the Apache project produces a page count of 0).
Handle TrueType equivalents to the Base14 fonts (Arial, TimesNewRoman,
CourierNew) -- Adobe's tools use these names without embedding the
fonts.
Tweaked the Type 3 font sizing kludge.
Changed pdfimages (ImageOutputDev) so it doesn't output JPEG files for
4-component color spaces, since these seem to confuse most image
viewers.
Added support for generating OPI comments (pdftops -opi).
In XOutputDev::drawImage() and drawImageMask(), check for images that
are completely off-page.
Use the provided alternate or a default (DeviceGray/RGB/CMYK) color
space for ICCBased color spaces.
Incorporated MacOS-specific code from Leonard Rosenthol.
Configure script switches to C++ for the strings.h/bstring.h test.
Gfx::opRestore() calls clearPath() to handle (apparently) buggy PDF
files produced by FreeHand.
The /Type field in most dictionaries is optional (PDF 1.3 change).
Move printCommands variable definition into Gfx.cc.
If page is smaller than paper, center the PostScript output.
Fix a minor bug in the SELECT_TAKES_INT detection in the configure
script.
TextOutputDev filters out control characters.
Changed enough occurrences of 'char *' to 'const char *' to keep gcc
2.95 from barfing.
Support for Latin-2 and Latin-5 in pdftotext (however, this will only
work if the PDF file contains correct font encodings, which seems to
be rare).
TextOutputDev converts "eightoldstyle" to "eight", etc.
Don't use the return value from sprintf() -- most systems return the
length, but some return the string.
Minor fixes for SunOS 4.
Configure script looks for both select() and fd_set in sys/select.h.
Configure script checks for gethostbyname() in -lbsd (for LynxOS).
Fix missing closepath bug in PostScript output.
Change PostScript portrait/landscape mode selection so it only uses
landscape if the page width is greater than the paper width.
Tweaked the VMS code in makePathAbsolute().
0.91a (2000-oct-11)
-------------------
Implemented separable CMYK PostScript output (the -level1sep switch to
pdftops).
Implemented Pattern color spaces with tiling patterns (polygon fills
only).
Implemented Stamp annotations.
Implemented Named link actions.
Fixed a really dumb bug in the TrueColor code in SFont (which affects
both Type 1 and TrueType font rendering on 16-bit displays).
Rewrote the GfxColorSpace / GfxColor code.
Switched from djgppcfg to dj_make.bat (from Michael Richmond).
Bug in the Type 1 encoding parser -- couldn't handle lines of the form
'dup NNN/name put' (with no space between the code and the name).
Fixed the mkstemp() test in configure.in -- switched from
AC_TRY_COMPILE to AC_TRY_LINK and added <unistd.h>.
Added DESTDIR to top-level Makefile.in.
Fixed an incorrect OPI comment in PSOutputDev.
Minor tweak to the CCITTFax code to avoid writing past the end of an
array on an invalid data stream.
Xpdf crashed if the user selected 'reload' when no document was
loaded.
Look for character names of the form "xx" (two hex digits with no
leading alphabetic char) and 'cNNN' (decimal digits with a leading
alphabetic char that happens to be a hex digit).
FlateStream didn't correctly handle zero-length streams.
Xref reconstruction didn't handle the case where the opening "<<"
immediately followed "trailer" with no intervening whitespace.
Fix the %%DocumentSuppliedResources comment in EPS output.
Scale annotations to fit their rectangles.
Added Stream::close() to handle cases (e.g., patterns) where a Stream
object is used multiple times before it is deleted.
Added the topLevel arg to Gfx::go() so it doesn't call out->dump() for
every pattern element (and form).
Rearranged the GfxResources class.
Clean up white space handling in Lexer.
Make the dpi parameter to PDFDoc::displayPage etc. a double - this
avoids margin gaps with fit-page and fit-width.
Fix a rounding problem in xpdf.cc that was causing the window to
sometimes be one pixel too small.
Fixed a minor bug in dealing with Base-14 TrueType font names.
Fixed Lab -> RGB color space conversion.
Added support for opacity values (from PDF 1.4) to GfxState and
OutputDev. [Thanks to Leonard Rosenthol.]
Implemented type 2 functions; rearranged the Function class
hierarchy.
0.91b (2000-oct-29)
-------------------
Print a warning about Type 3 fonts (XOutputDev, PSOutputDev).
Added the scroll lock behavior to 'n' and 'p' keys in xpdf.
Change FileStream buffer size to a #define'd constant.
Renamed Pattern to GfxPattern to avoid clashes with Windows and MacOS
types.
Added CNS (Big5) Chinese font support (CHINESE_CNS_SUPPORT); renamed
CHINESE_SUPPORT to CHINESE_GB_SUPPORT.
0.91c (2000-nov-19)
-------------------
Fix an endianness problem in the Type 1 font code which resulted in an
incorrect display with "-t1lib plain" on big-endian systems.
CCITTFax stream decoder will skip over extra zero bits at end of line,
even if EncodedByteAlign flag wasn't set.
Added Big5 support to pdftotext (with CHINESE_CNS_SUPPORT enabled).
Fixed a typo in the CNS/Big5 encoding translation table.
Change the form code in PSOutputDev to store images in arrays of
strings.
The xref reconstruction (for damaged files) now also looks for
'endstream' tags, and the parser uses this information when setting
up stream objects.
In pdfinfo, convert Unicode chars in the 00xx range into 8-bit chars;
print a warning if there are any other Unicode chars.
0.92 (2000-dec-03)
------------------
Fixed %%BeginResource comment (for xpdf procset) in PostScript
output.
Added "-title" switch and "xpdf.title" resource to set the window
title.
Check for <freetype.h> in addition to <freetype/freetype.h>.
Upgraded the configure script to smr_macros 0.2.4 - this should fix a
bug where configure wasn't correctly finding t1lib.
0.92a (2000-dec-17)
-------------------
Added 'extern "C" { ... }' in various places for ANSI C++ compliance.
Tweaked the code that figures out DPI for fit-to-page and fit-to-width
modes.
Fixed the image transformation code in XOutputDev -- no more missing
lines.
Implemented color key image masking in XOutputDev.
0.92b (2001-jan-07)
-------------------
Fixed a bug in the error-checking code in the Separation/DeviceN color
space parsing functions. [Thanks to Lidia Mirkin.]
Added wheel mouse support (mouse buttons 4 and 5). [Thanks to
Thorsten Schreiner.]
Added preliminary support for FreeType 2 (disabled by default).
0.92c (2001-jun-04)
-------------------
Fixed a bug in the new image transformation code.
Look for character names of the form "<letter><digit><digit>", instead
of looking for names beginning with a few specific letters.
T1FontFile::T1FontFile wasn't initializing vars, and ~T1FontFile
wasn't checking before calling T1_DeleteFont -- this caused crashes
if it tried to open a nonexistent font file.
Catalog::Catalog didn't set baseURI to NULL early enough.
Tweak the check for strings.h in the configure script.
Yet another fix for the image rotation code in XOutputDev --
off-by-one problem when upsampling.
Handle Type 1/1C encodings when using FreeType 2.
Allow FreeType2 to render user-supplied Type 1 base fonts.
Opening a new file from full-screen mode tried to scroll.
Fixed a bug in GfxFont constructor (missing check for NULL base font
name).
Don't crash if a Type 1 font's FontBBox is non-integer.
Pdfinfo prints page size.
Tweak for the alpha hack in T1Font/TTFont: sample the middle pixel
instead of the top-left pixel.
Automatically activate the text input widget in the find window.
Changed a Japanese char code mapping in XOutputDev and TextOutputDev:
period was being incorrectly mapped to small circle (end-of-sentence
character).
Add the 0/+/-/z/w key bindings to control the zoom setting.
Fixed ImageOutputDev (pdfimages) to correctly handle inline image
masks.
Extract ascent/descent info from font descriptor.
0.92d (2001-jun-26)
-------------------
Embed TrueType fonts in PostScript output. (Added a "-noembtt" flag
to pdftops.)
Extract encoding from TrueType fonts.
Moved Function classes to a separate file (Function.h/cc).
Implemented multi-dimensional sampled Functions.
Implemented Type 4 (PostScript calculator) Functions.
For Type 0 fonts, FontDescriptor is in descendant font, not parent.
[Thanks to Lidia Mirkin.]
Added the "-htmlmeta" option to pdftotext.
In TextOutputDev, when computing the number of blank lines to insert,
do a sanity check on the result.
If both FlateDecode and some other filter (e.g., DCTDecode) were
applied to an image stream, getPSFilter() crashed instead of just
returning NULL.
Handle the /Identity function.
0.92e (2001-aug-23)
-------------------
Widths in font dict should override built-in font widths.
Changed "rotate left/right" menu items to "rotate
clockwise/counterclockwise".
The link parsing code choked if the Border array was incorrect (too
short).
Modified PSOutputDev to output CMYK for fill/stroke colors.
0.93 (2001-oct-25)
------------------
Implement PDF 1.4 (128-bit) decryption.
Bump supported PDF version number to 1.4.
Text output for Simplified Chinese. [Thanks to Cheung Siu Fai.]
Read an app-defaults file for Xpdf.
Read a system-wide config file (<prefix>/etc/xpdfrc) if ~/.xpdfrc
doesn't exist.
Accept and verify owner password; if correct, allow all actions.
Added a "-level2sep" option to pdftops to generate Level 2 separable
PostScript. The PostScript separation convention operators are used
to handle custom (spot) colors. [Thanks to Thomas Freitag for help
on this.]
Add support for FreeType 2 to the configure script. Warning: this
requires FT 2.0.5 or newer.
Fixed the bounding rectangle overlap test in the disconnected subpath
fill hack in XOutputDev.
Stupid typo in font name table in PSOutputDev.
Changing the zoom setting with a keyboard shortcut didn't update the
displayed setting.
Modified the mouse wheel support and added the second wheel (mouse
buttons 6 and 7). [Thanks to Michal Pasternak.]
Character and word spacing is affected by horizontal scaling (display
and PS output). [Thanks to Eddy Ng.]
Rotation specified by the text matrix, character spacing, and
horizontal scaling interacted incorrectly (display and PS output).
Some broken Type 1/1C fonts have a zero BBox -- kludge around this by
assuming a largeish BBox.
Handle PDF files with an incorrect (too small) xref table size.
Allow "-?" and "--help" as aliases for "-h" (all apps).
Correctly handle unescaped parens in strings in Lexer.
Fixed a bug in LTK where a menu got posted multiple times if you right
clicked while a page was being rendered.
Removed a comma inside a string in configure.in.
Kludge around broken PDF files that use char 32 but encode it as
.notdef instead of space.
Clean up various compiler warnings: use constructor args like "fooA"
if there is a field named "foo". Everything now compiles cleanly
under gcc 2.91.66, 2.95.2, and 3.0.1.
Page objects now read all of the page rectangles (MediaBox, CropBox,
BleedBox, TrimBox, ArtBox), as requested by the pdfTeX folks.
Added a new PDFRectangle struct to hold these.
Use XOutputDev's Type 3 font size hack in TextOutputDev too, so it
does a little better job of extracting text in Type 3 fonts.
Modify pdfimages to write one-bit images as PBM files.
Work around a bug in cygwin's implementation of fseek.
0.93a (2001-nov-21)
-------------------
Implemented the sh (shaded fill) operator for the axial shading type.
Minor fixes to avoid compiler warnings.
Cleaned up global variables -- moved many into instance vars and
function args.
Minor fixes for OS/2.
Fix the system config file path for VMS.
Fix an uninitialized var in XOutputDev that caused crashes on Alphas.
Don't incrementally update the display in full-screen mode.
For Type 1/1C fonts, use the FontBBox from the PDF FontDescriptor
(instead of the one in the font file) if present -- this avoids
problems with fonts that have non-standard FontMatrixes.
Add the Euro character to WinAnsiEncoding.
Track the bounding box of the clip region to make rendering patterns
more efficient.
Fix openTempFile() for Win32.
0.93b (2001-dec-11)
-------------------
Added a duplex option to PSOutputDev and a -duplex switch to pdftops.
Added XRef::PDFgetDocInfoNF() for pdftex project.
Updated the VMS build script.
0.93c (2001-dec-12)
-------------------
Completely rewrote the code that handles font encodings:
- everything is Unicode-based
- 16-bit fonts are handled much more cleanly
- text output encoding can be set more flexibly
New .xpdfrc config files.
1.00 (2002-feb-01)
------------------
More work on the font encoding rewrite:
- use the ToUnicode font dict entry
- pdfinfo and pdftotext (with '-htmlmeta') convert info strings to
the selected text encoding
Added key bindings for forward ('v') and backward ('b').
Added the pdffonts program which lists the fonts used in a PDF file.
Fixed several problems in the TrueType font embedding code (for
PostScript output).
Accept named destination on command line.
Added several new items to pdfinfo: file size, PDF version, tagged
(yes or no), XML metadata (with the -meta option).
Pdftops didn't get the portrait/landscape setting correct for PDF
files with rotated pages.
The TrueTypeFontFile class (including the Type 42 converter) now
understands cmap format 6.
Improved the "about" window -- mention the GPL, add a list of key
bindings.
Added Zcaron and zcaron characters to WinAnsiEncoding.
The '0' keyboard shortcut didn't update the zoom popup menu.
Handle the complete list of alternate names for the Base14 fonts.
Fixed substitute font scaling in XOutputDev - scale only the width,
not the height.
Implemented stitching (type 3) functions.
Handle the case of moveto/closepath/clip, which defines an empty
clipping region.
Move dependences into separate Makefile.dep files; get rid of the
distdepend target.
Move all of the configure-script-generated -D options out of the
Makefiles and into a top-level .h file (aconf.h).
Cleaned up the FreeType 1/2 detection code in the configure script.
Pdfinfo prints dates in a more readable format.
Fixed a bug in the Paeth image predictor.
Handle annotations with multiple states.
Another workaround for buggy X servers: clip points that are way out
of bounds.
Added libpaper support (for Debian).
Generate PostScript DSC resource comments for PS (not just EPS)
files.
The save and restore (q/Q) operators shouldn't save/restore the path.
Performance optimization: disable pattern drawing in TextOutputDev.
1.00a (2002-feb-25)
-------------------
Added an optimized special case for one-bit images in XOutputDev.
Implemented CID TrueType font embedding; added a psEmbedCIDTrueType
option.
The initialZoom X resource was broken.
The reverse MacRoman encoding should return 32 for "space" (not 202,
which is an alternate encoding).
Tweaks to the FreeType 2 support: only disable hinting if the bytecode
interpreter is disabled (i.e., disable autohinting but not bytecode
hinting); add some padding to the glyph cache for CJK fonts.
Added level3 and level3Sep options for the psLevel setting and
corresponding -level3 and -level3Sep options to pdftops.
Added a -level2 option to pdftops for consistency.
Avoid a divide by zero in pdftotext. [Thanks to William Bader.]
Added a Greek language support package. [Thanks to Alexandros
Diamantidis and Maria Adaloglou.]
Don't bother trying to extract a "builtin" encoding from a TrueType
font.
Accept either a page number or a page reference in a link
destination.
Update the fontFixedWidth flag in GfxFont after reading the char
widths (used by the Acorn RiscOS port).
Removed yet another (illegal but not caught by gcc) class specified
from a .h file.
Avoid using snprintf - it's not available everywhere.
Improved the CMYK->RGB transform.
Use mkstemps where available.
1.01 (2002-may-20)
------------------
Implemented Type 3 fonts.
Implemented PostScript CID font embedding; added a
psEmbedCIDPostScriptFonts option.
Implemented PostScript 16-bit font substitution; added psNamedFont16
and psFont16 options.
Moved the initialZoom setting from X resources to the xpdfrc file.
Implemented the radial shading type in the sh (shaded fill) operator.
[Thanks to Mike Sweet.]
Added an 'include' command to the xpdfrc format.
Added the displayNamedCIDFontX option so different fonts can be used
within one character collection.
Added a simple reverse video mode (-rv switch, xpdf.reverseVideo
resource).
Implemented stroked text in XOutputDev (with t1lib and FreeType2).
[Thanks to Leonard Rosenthol.]
Implemented stroked text in PSOutputDev.
Added a built-in Unicode map for UCS-2.
New key binding in xpdf: 'g' activates the page number text field.
PSOutputDev will now embed external TrueType fonts in addition to
external Type 1 fonts.
The psEmbedType1Fonts and psEmbedTrueTypeFonts options were missing
the "Fonts" suffix.
Documentation in xpdf.1 for -freetype option was wrong.
Added the Big5ascii Unicode map to the Chinese-traditional support
package (maps 7-bit ASCII straight through). [Thanks to Lawrence
Lai.]
Modified the EUC-CN and EUC-JP encodings to pass 7-bit ASCII straight
through. [Thanks to Lawrence Lai.]
Avoid a divide by zero in XOutputDev. [Thanks to Simon Burge.]
Remove old code in openTempFile that removed an extension from the
name returned by tmpnam.
Tweak the scrolling behavior when switching pages. [Thanks to Case
Jones.]
In the code that guesses character names (for font subsets), also
handle names of the form 'ABnnn'. [Thanks to Colin Granville.]
Fix the transform code for annotations.
Improved the CMap file parser to handle more general PostScript
lexical conventions.
Added '-enc' option to pdfinfo.
Added the small caps and oldstyle numbers from Adobe's Unicode
corporate use area to the Latin1 and ASCII7 Unicode maps.
The code in TextOutputDev that guesses Type 3 font size could generate
a zero size, which resulted in div-by-zero errors.
Various tools (including Adobe's) occasionally embed Type 1 fonts but
label them Type 1C - so check for a '%!' at the start.
Some tools embed Type 1C fonts with an extra whitespace char at the
beginning - just skip over it.
Fixed a typo in the Simplified Chinese add-to-xpdfrc file.
Updates to dj_make.bat and the djgpp build instructions.
Added a Turkish language support package.
Updated VMS build scripts. [Thanks to Martin Zinser.]
Modify the incremental display update code to redraw less often if
most of the commands are vector graphics, as opposed to text and
images.
Tweak the Type 1 font bbox code to look at the bboxes in both the PDF
font object and the embedded font file.
Fixed the ETenms-B5-H CMap file (for traditional Chinese) to map the
Latin characters to their proportional versions.
Added an optional displayCIDFontX entry for one of the Arphic TrueType
fonts in the traditional Chinese 'add-to-xpdfrc' file.
Remove leading '-' on include statements in Makefiles.
Added psASCIIHex parameter.
Added the GBK Unicode map to the simplified Chinese language pack.
Pdftotext now opens the text file in binary mode to avoid Microsoft's
annoying automatic end-of-line translation stuff.