You must have come to such problems that when you want to copy a PDF file on the internet, you are required to enter the PDF Password. It is really a boresome thing. However, if you own this PDF Decrypter, you will never worried about PDF Dcryption.
PDF Decrypter can decrypt both "owner" and "user" password in a very shot time. Besides, brute-force, dictionary and key search are also surported by PDF Decrypter. Follow me to excperience how to decrypt PDF password.
Step-by-step Guide on How to Decrypt PDF
Preparation: Download PDF Decrypter and install it. The interface will be like the following shows.
Screenshot:
Step1. Click button to input PDF files which you want to decrypt.
Step2. Choose the "Brute-force" as the type of attack in the drop-down menu.
Step3. Check in front of brute-force range options which you think may be included in the password. Then set the minimal password length and maximal password length, in this way PDF Dcrypter can save time to decrypt PDF password.
Note: If the password is too long, it is uneasy for PDF Decypter to decypt password for you.
Step4. After all the settings are set, click decrypt to start to decrypt PDF password, after PDF Dcrypter find the password, it will popup a "Save As" dialog, you may save to a normal PDF file directly.
Limitations:
PDF files protected using PDF Merchant and EBX digital rights management schemes or 3rd party plugins such as FileOpen, SoftLock etc cannot be decrypted.
Brute-force attack is effective for short passwords only, usually up to 7-8 chars. Recovering longer ones will take too much time (months, years) even on a very fast computer. If your file has "user" password and use 40-bit encryption, you can use Key search attack.
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