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A Password Recovery Tool for PDF-files

A Password Recovery Tool for PDF-files
PDFCrack is a GNU/Linux (other POSIX-compatible systems should work too) tool for recovering passwords and content from PDF-files. It is small, command line driven without external dependencies. The application is Open Source (GPL).


* Supports the standard security handler (revision 2 and 3) on all known PDF-versions
* Supports cracking both owner and userpasswords
* Both wordlists and bruteforcing the password is supported
* Simple permutations (currently only trying first character as Upper Case)
* Save/Load a running job
* Simple benchmarking
* Optimised search for owner-password when user-password is known

Install pdfcrack in Ubuntu

sudo aptitude install pdfcrack

pdfcrack Syntax

pdfcrack -f filename [options]

pdfcrack Example

pdfcrack suck.pdf


fantasyl3d said...

thanks Nikesh !

Unknown said...

Not knowing what to do next

I type in:
pdfcrack file1.pdf

and pdfcrack immediately comes up:
Error: Encryption not detected (is the document password protected?)

Well yes it is, in that it can be read by anyone, but cannot be altered. I just want to add a new page, but no editing program will touch it, and pdfcrack won't do anything.

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