董文涛

重点应该是目标函数需要有下界

I also encountered this problem. There are some pictures in png format in my pdf. I found it can not extract. There are following steps： 1. write a PngImageTransformer 2....

Sorry, I can't provide the original pdf document. Because the pdf involves privacy.

[test.pdf](https://github.com/jorisschellekens/borb/files/12419625/test.pdf) I draw a table in the test.pdf use reportlab. The table has 9 line segments. The problem mentioned above can be reproduced with the test.pdf. The coordinates of these...