Adobe PDF Encryption
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Adobe PDF X/XI Encryption
Problem cracking 1.7 Extension Level 8
Specification not published as of May 2011. AES-256 different password handling than in Extension Level 3.
Code
<</DecodeParms <</Columns 5/Predictor 12>> /Encrypt 6214 0 R /Filter /FlateDecode /ID [<CB56E7D64EB3C34D9605FC366202DB08><57856C536267674DA27A6A8F247DBD66>] /Index [6 1 9 1 12 1 17 1 19 4 27 1 32 1 37 1 42 1 47 1 52 1 57 1 62 1 67 1 72 1 77 1 82 1 91 67 168 1 177 1 188 1 224 1 270 2 5323 1 5326 1 5328 1 5330 1 5332 1 5334 1 5336 1 5338 1 5340 1 5342 1 5344 1 5346 1 5348 1 5350 1 5352 57 5410 6 6212 3 6217 1 6224 1 6233 1 6245 2 6566 4] /Info 6212 0 R /Length 147 /Prev 454828 /Root 6215 0 R /Size 6570 /Type /XRef /W [1 3 1] >>
<</DecodeParms <</Columns 4/Predictor 12>> /Encrypt 6214 0 R /Filter /FlateDecode /ID [<CB56E7D64EB3C34D9605FC366202DB08><BDA8D649D4298B4290FEE2CAB22701E9>] /Index [154 1 6212 1 6214 1 6570 2] /Info 6212 0 R /Length 33 /Prev 461497 /Root 6215 0 R /Size 6572 /Type /XRef /W [1 3 0] >>