SysTools PDF Unlocker is a tool designed to remove password and restrictions from PDF files.
Best Stellar Password Recovery for PDF Alternatives ranked by AI · updated Aug 2026
Stellar Password Recovery for PDF is a Windows utility for recovering passwords from encrypted PDF files and removing restrictions on copying, editing, or printing. It targets home users and small businesses that want a guided graphical interface.
Top 6 Stellar Password Recovery for PDF alternatives
John the Ripper is a fast password cracker, currently available for many flavors of Unix, Windows, DOS, BeOS, and OpenVMS.
PassRec PDF Password Recovery is a Windows utility for recovering or removing passwords from protected PDF files. It supports brute-force, dictionary, and...
Pros
- Supports multiple password-recovery attack methods
- Designed specifically for PDF documents
- Simpler workflow than general-purpose password-cracking suites
Cons
- Windows-focused compared with cross-platform alternatives
- Less widely documented than Passware or Elcomsoft
- Recovery time depends heavily on password complexity and available hardware
4
Passware Kit
Passware
Passware Kit is a commercial password-recovery suite for encrypted files, documents, archives, disks, and other protected data. It targets investigators, forensic professionals,...
Pros
- Covers protected files and containers that ophcrack cannot address
- Provides a guided graphical workflow for forensic recovery
- Supports GPU acceleration for selected recovery tasks
Cons
- Commercial editions cost more than ophcrack and open-source tools
- Not primarily designed for Windows account hash auditing
- Recovery success depends heavily on password complexity and file format
From $49
5
Elcomsoft Advanced PDF Password Recovery
ElcomSoft
Elcomsoft Advanced PDF Password Recovery is a Windows application for recovering PDF document passwords and removing editing or printing restrictions. It uses...
Pros
- Stronger GPU and distributed-recovery support than PassRec
- Handles a broad range of PDF encryption and password types
- Well suited to forensic and enterprise workflows
Cons
- More expensive than many consumer PDF recovery tools
- Technical interface has a steeper learning curve than PassRec
- Primarily designed for Windows
6
PDFCrack
PDFCrack contributors
PDFCrack is a free, open-source command-line tool that attempts to recover passwords from encrypted PDF files. It is aimed at technically comfortable...
Pros
- Free and open source
- Lightweight and easy to automate in scripts
- Works well for older or weak PDF passwords
Cons
- Command-line interface is less accessible than PassRec
- Lacks modern GPU acceleration and distributed recovery
- Limited support for newer encryption configurations
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