Duan Yao

If ToUnicode is missing, can we just ignore `--space-as-offset 1` for that font automaticly? We can also add `--space-as-offset 2` to force it on even if ToUnicode is missing. However...

It seems a problem of cmake, although I don't know why. Try to remove cmake's temp files listed in `.gitignore`, and re-run cmake. If the problem persists, check `cmake.log` file...

Did you find the root cause of the failing build previously? By the way, you don't have to run `sudo make install` after a compilation if you haven't modified files...

Please attach the PDF directly. This may be due to that those characters' bounding boxes overlap slightly, so `--correct-text-visibility` thinks them should be renderred as image to achieve correct visibility....

Converting output of pdf2htmlex to epub3 is definitely doable (we did that actually). Of cause you have to do some programing to generate the navigation document and the OPF. What...

It seems the latest [EPUB3 spec](http://www.idpf.org/epub/301/spec/epub-contentdocs.html#sec-css-2.1) still forbids `unicode-bidi`. However if major epub3 readers accept `unicode-bidi`, I think it is not a big problem to violate the spec. If you...

@anteprandium I did convert output of pdf2htmlex to epub3, however it is not [fixed layout epub3](http://www.idpf.org/epub/31/spec/epub-contentdocs.html#sec-fixed-layouts). In my opionin, fixed layout epub3 is poor in page transition performance because each...

Searching "themes.googleusercontent.com" in this repo returns zero result. Maybe it is from a 3rd party lib or a browser extension. Can you provide the url to your converted file?

What is the concrete use case? FFmpeg supports ["concat:" protocol](http://ffmpeg.org/ffmpeg-protocols.html#concat), which plays multiple URLs in sequence. Maybe codecbox.js can handle it if "concat:" protocol is enabled (not tried yet). However...

I think we need to replace the http component of ffmpeg with a wrapper of XHR, and HLS should work.