Recover PDF passwords with this free PDF crack utility for windows called “PDFcrack”. PDF files and documents can be password protected and encrypted. We had earlier covered an article on how to password protect PDF files.This is a review of a free PDF password recovery tool for windows.
Password protection is vital for sharing sensitive information with only the intended recipients.However, it may sometimes so happen that the legitimate owner of the PDF file forgets the password he used to lock it.
Here is a free PDF password recovery tool for windows that can be used to crack PDF passwords.This has been developed for legitimate purposes.Though there are plenty of commercially available PDF password recovery tools to crack PDF passwords and unlock the documents, this is a free windows binary version of the open source PDF crack utility for Linux.
This PDF password cracker for windows has been built to recover passwords and content from PDF files that are locked and protected with passwords.This is the windows equivalent (built as a windows binary using cygwin) of PDF crack for Linux and has the following features.
PDF cracker – Features:
- Supports the standard security handler (revision 2, 3 and 4) on all known PDF-versions
- Supports cracking of both owner and user passwords
- Supports both word lists and brute forcing the password
- Uses simple permutations.
- Supports optimized search for owner-password, when user-password is known
How to use PDFcrack to crack PDF passwords?
Open a command prompt window, and run the following command.
pdfcrack -f <filename>.pdf
Replace “<filename>” with the actual file name of the password protected PDF file. If you remember the password length or if you know the user password, then you can speed up the cracking process with appropriate options. For eg., if you know the password length was either 7 or 8 characters, then you may execute the following command.
pdfcrack -f <filename>.pdf -n7 -m8
Free download PDF crack for windows and crack PDF passwords.
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