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Guaranteed PDF Decrypter

Download Editors' Rating:
Average User Rating:
out of 5 votes

Quick Specs

  • Version:
  • Total Downloads:
  • Date Added:
    Nov. 01, 2010
  • Price:
    Free to try (Only small files supported); $25.00 to buy (Buy it now)
  • File Size:
  • Downloads Last Week:
  • Platform:

Editors' Review


The software world is full of PDF utilities from the four corners of the globe. PSW-soft's Guaranteed PDF Decrypter (GuaPDF) is an example; its developers' page is called Russian Password Crackers, which sounds like something out of the Cold War but in fact is a group specializing in cryptosecurity. GuaPDF is designed to remove various restrictions from PDF files, up to 256-bit key encryption, and to decrypt 40-bit key passwords of any length in any language. It can also harness the processing power of Nvidia CUDA-capable graphics cards to accelerate decryption.

GuaPDF downloads as a ZIP file but opens immediately and runs locally on your PC; there's no need to install anything. This compact program doesn't modify the files it handles in any way, which is part of the decryption guarantee. Right-clicking its System Tray icon accesses the program and an option to choose the decryption's priority in accessing system resources. The interface itself is about as basic as it gets, just a PDF-based interactive dialog with File, Options, and Help menus, progress bars for the key space and the current key, and a main display. We tried several PDFs; GuaPDF quickly identified all characteristics, but the free demo version wouldn't fully decrypt the larger files. Smaller files decrypted instantly, though.

You don't need to be an industrial spy to require PDF decryption; all you need to be is forgetful. We tested GuaPDF in both Windows 7 and Vista with excellent results. It's available in several licensing configurations for regular and commercial users.

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Publisher's Description

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User Reviews

Results 1–1 of 1

3 stars

"Not up to expectations"

October 19, 2011  |  By andrewsarris04

 |  Version: Guaranteed PDF Decrypter 3.11


Did not work for me.


I'm kinda agree with divedogg review. But, i wouldn't say that the software is an epic fail itself. It did work for me when i tried to use it on a file with low encryption but when i tried it on a pdf file with 128 bit AES encryption, it gave me a error that "128 bit encryption is not supported."


If you're looking for a pdf decrypter that supports pdf files with 128bit encryption then this software wouldn't serve the purpose for you. Instead of this i do recommend an another software by some estelar group that i tried myself and pretty much satisfied with the results. Here is the link in case if you want to try


Updated on Oct 19, 2011


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Full Specifications

What's new in version 3.11
Version 3.11 includes GPU (NVIDIA CUDA) support for 40-bit key testing.
Publisher Guaranteed Software
Publisher web site http://www.guapdf.com/#restrictions_remover
Release Date May 16, 2010
Date Added November 01, 2010
Version 3.11
Category Business Software
Subcategory Word Processing Software
Operating Systems
Operating Systems Windows 2000/XP/2003/Vista/Server 2008/7
Additional Requirements Pentium 4 or higher
Download Information
File Size 372.81KB
File Name guapdf33.zip
Total Downloads 62,484
Downloads Last Week 32
License Model Free to try
Limitations Only small files supported
Price $25

Previous Versions:

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