Reorganize the downloaded patent from SIPO. Extract the pdf file and rename. Change the tif file to PDF and rename. Make a statistical analysis .
Update at 2018/3/5
1.add GUI
Python 3.6
Update at 2018/3/26
1.Fix bugs!
Update at 2018/4/2
1.Fix bugs!
2.Add statistics function
Update at 2018/12/25
1.Add single file surport.