Some time ago, a collegue of mine wanted to copy a few sentences from an
protected, so acrobat reader disabled copy&paste.
When he asked for some help, I replied that if he had used some open source viewer like
xpdf he wouldn't have had that problem.
Well. As I quickly found out, this was untrue. The author(s) of xpdf had somehow gotten convinced to honor the "protection"-flags of
I spent some time (much more than it would have taken to retype these three sentences) understanding the source, and finally came up with a single-line patch to restore full functionality of
Simply apply the following patch and feel unrestricted again.
--- xpdf/XRef.cc.org Thu Jan 22 02:26:45 2004 +++ xpdf/XRef.cc Fri Apr 29 12:15:57 2005 @@ -803,6 +803,7 @@ // this flag has to be set *after* we read the O/U/P strings encrypted = encrypted1; + permFlags = defPermFlags; return ret; } #else