How to decrypt PDF files

How to decrypt PDF files, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain in detail for you, people with this need can come to learn, I hope you can gain something.

I. the form of PDF file encryption

There are two common forms of PDF file encryption:

1. Password encryption (relatively easy to decrypt)

2. Key encryption

Second, the method of decrypting PDF files.

1. Use decryption tools (enumerating passwords, brute force cracking)

2. Import key decryption

Third, PDF document decryption tools and websites

1. Decryption tool

Adult PDF Password Recovery

AdvancedPDFPasswordRecoveryPro

PDF Password Cracker Pro

PDF Password Remover

VeryPDF PDF Password Remover

2. Website

Online decryption: http://www.pdfunlock.com/

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