Quote:
Originally Posted by joblack
Very strange - I also have two people who have encrypted pdfs with an empty trailer ... check out your working encrypted pdfs with a hex editor. If there is a
trailer.<<>>.startref.$NUMBER.%%EOF
at the end and your Digital Editions is still showing it they have changed the format of the pdf again (Adobe also forced me to update my DE).
But without a trailer it goes against the official pdf reference (and shouldn't work)... anyway, if you have a working encrypted pdf with that format (means there is nothing between << and >>) please report.
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Since you've mentioned it, I did some comparisons between some encrypted PDF files and ones that have been "freed" with ineptpdf. It's interesting to note that all PDF files were version 1.5. For the ones that were successfully decrypted, the original encrypted files had two sets of
trailer
<<$TEXT>>
startxref
$NUMBER
%%EOF
Those that failed (even if they were reported by ineptpdf to be successfully decrypted) contained three sets of "trailer" but the first set ends in
xref
0 0
instead of
%%EOF
It also contains a whole lot more bytes between trailer and xref. PM me your email address so I can send you the problematic files for studying.