Gain full access to locked PDF files by efficiently and safely recovering document open password or removing restrictions.
Forget the password to open a protected PDF file
Cannot edit, copy, or delete the content in a PDF file
Being restricted from printing a desired PDF file
Unable to leave comments on a certain PDF file
To protect sensitive information, Adobe Acrobat allows users to encrypt PDF files with passwords or restrict editing, or even both at the same time. We provide two different options to solve problem accordingly.
Recover Document Open Password
Recover password to open encrypted PDF files by 4 powerful methods.
Remove Restrictions
Remove permissions password from locked PDF files so as to edit, copy, and print the content freely.
1. Dictionary Attack
2. Combination Attack
3. Mask Attack
4. Brute-Force Attack
Dictionary Attack
Tries all the items in an inbuilt dictionary until it finds the right one. You can also import your personalized dictionary into the software.
Combination Attack
Based on the information you provide, such as the password length, it randomly combines the letters, numbers, and symbols you choose to recover the password.
Mask Attack
It collects some clues about the password such as character types not included, prefix, suffix and so on to get the correct password.
Brute-Force Attack
When you don't have any information to provide about the password, this trial-and-error method will try all the combinations of all characters to crack the password.
Passper for PDF tackles all the restrictions with a 100% success rate. Just need one simple click, and in 1 or 2 seconds, you can edit, copy, and print your PDF files as you want.
Highest Success Rate
Passper can recover most of the passwords of encrypted PDF files and remove restrictions with a 100% success rate.
Fast Working Speed
Based on the CPU and GPU acceleration technology, Passper helps remove passwords at the top speed.
Absolute Data Safety
Nothing concerning privacy will be sent to the server. No data leakage will occur and your PDF file's integrity is guaranteed.
Save Recovery Progress
You can stop the operation anytime you want. Passper will save the progress for you to resume it the next time.
Step 1. Select "Recover Passwords" option
Choose "Recover Passwords" on the home interface.
Step 2. Choose a File & a Recovery Method
Add the protected file and choose a proper recovery method which suits you the best.
Step 3. Recover the Password
Click "Recover" button, wait for some time and the password recovered will show on the screen.
OS Requirements:
Windows 10
Windows 8.1
Windows 8
Windows 7
Windows XP
Windows Vista
CPU:
1GHz or more
RAM:
512 MB or more
Hard Disk Space:
200 MB free space and above
PDF Versions：
All PDF files created by all versions of Adobe Acrobat or other PDF software.
GPU:
NVIDIA G80+ (GT8600 to GTX1080 TI)
No matter how your PDF files are locked, this all-in-one tool will solve the problem for you.
Passper for PDF 
