apache license not compatible with PyMuPDF

[vadim0x60]

MuPDF has a restrictive license (AGPL-3.0) that doesn't allow commercial use. Using pymudpf in a library distributed under Apache license violates it.

[wangbinDL]

Thank you for pointing out this issue. We will update the license accordingly.

[vadim0x60]

oh no

[vadim0x60]

PyMuPDF is only used in a small fragment that's easily replaceable by other python PDF libraries. Couldn't we remove that fragment and retain a free license?

[wangbinDL]

Thank you for your suggestion. While it's true that PyMuPDF can be replaced with other Python PDF libraries, our use of the YOLO framework for document detection algorithms, such as formula detection, enforces strict licensing constraints. YOLO is licensed under AGPL-3.0, which requires us to license the entire repository under AGPL-3.0 as well.

Although alternative detection methods could be considered, this would extend our development timeline significantly. We are open to suggestions for more streamlined solutions that comply with a less restrictive license. Your input is greatly appreciated.