For a long time pdf2htmlEX has been lack of test cases, which is terrible, you won't know whether your tiny changes to the code would break some existing features.
Now I'm trying to make that a history. A new repo has been set up at GitHub:
This is still in early stage, which is highly experimental, and the interface might be changed in the future. But this is really a good time for you to submit your test cases, just to make sure that you file will be always rendered correctly in future releases of pdf2htmlEX!
Please tell me what you think about it such that I can improve it.