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Old 12-10-2005, 03:24 AM   #1
satimis
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Registered: Apr 2003
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A question on encrypted pdf files


Hi folks,

I have some technical documents on .pdf format download from Internet. They are allowed to download by filling personal information. I supposed they have been encrypted.

Each time I have to re-filling in the same personal data before I can read the document. It is not convenient. Besides their contents can't be copied/pasted. Each time trying to highlight their text warning popup saying this operation not permitted.

I succeeded printing them as .ps files. However still I could not copy/paste their content. Running

# ps2pdf tmp_001.ps tmp_001.pdf
Code:
This PostScript file was created from an encrypted PDF file.
Redistilling encrypted PDF is not permitted.
Error: /undefined in --get--
Operand stack:
   --nostringval--   --dict:88/200(L)--   quit
Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   false   1   %stopped_push   1   3   %oparray_pop   1   3   %oparray_pop   1   3 %oparray_pop   1   3   %oparray_pop   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   2   3   %oparray_pop   --nostringval--   --nostringval--   --nostringval--   --nostringval--   --nostringval--
Dictionary stack:
   --dict:1063/1123(ro)(G)--   --dict:0/20(G)--   --dict:88/200(L)--   --dict:1063/1123(ro)(G)--
Current allocation mode is local
GNU Ghostscript 7.07: Unrecoverable error, exit code 1
I can open the .ps file with GIMP but could not re-save it as .pdf becuase .pdf format is not available on GIMP for saving.

Kindly advise is there a way to decrypt the .pdf file not having to filling same personal data to read it.

TIA

BR
satimis
 
Old 12-10-2005, 05:16 AM   #2
320mb
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Quote:
Originally Posted by satimis
Hi folks,

I have some technical documents on .pdf format download from Internet. They are allowed to download by filling personal information. I supposed they have been encrypted.



Kindly advise is there a way to decrypt the .pdf file not having to filling same personal data to read it.
most likely these files are copyrighted! which is why they were encrypted in the first place.........
 
  


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