Re:Firefox 80
by kevin_thibedeau on Tuesday August 25, 2020 @02:24PM
(#24274364)
This is a hard problem. Unflowing text requires determining where the next line is and possibly removing optional hyphenation. PDF only deals with one line spans of text at best. Throw in super and subscripts or inline graphics and it becomes nontrivial.
It's not trivial, but as the bug report points out, Adobe Reader can handle it.
The best alternative on windows is PDF-XChange, fairly obscure but extremely feature-rich.