: A powerful, cross-platform CLI tool that acts as a secure, private alternative to online unlocking services. It is ideal for batch processing entire directories of PDFs. MaheshTechnicals/pdf-password-remover : A unique client-side web application
that works directly in your browser. Because it processes everything locally using JavaScript libraries like
, your files are never uploaded to a server, ensuring maximum privacy. Sharma-IT/pdf-password-remover
: A comprehensive tool designed for modern security standards, supporting AES-256 encryption and the PDF 2.0 specification. 🛠 Specialized Removal Utilities
For specific use cases, these repositories offer targeted functionality: Permissions & Restrictions abatsakidis/PDFDeSecure
focuses on removing restrictions like printing, editing, and copying, which are often applied via DRM-like "secured" modes. Similarly, jakepetroules/littlebirdy
is designed specifically to strip away Permissions Passwords automatically. Password Cracking/Recovery alitrack/PDFCrack
: A lightweight, command-line-driven recovery tool for POSIX systems (Linux/macOS) with no external dependencies. hashcat/hashcat
: While a general-purpose recovery tool, it is widely considered the world's fastest utility for cracking PDF passwords through brute force or dictionary attacks. Library & CLI Power galkahana/pdf-recrypt
is a versatile CLI for adding, removing, or modifying PDF passwords, allowing fine-grained control over user protection flags (e.g., enabling low-res vs. high-res printing). 💻 Developer-Friendly Scripts
If you prefer running your own scripts or integrating logic into existing projects: PDFUnlock - Free PDF Password Remover & Unlocker - GitHub pdf password remove github top
To remove a password from a PDF using top tools on GitHub, you can use powerful open-source command-line interfaces (CLIs) or Python-based utilities. These tools are often preferred for their speed, privacy, and ability to handle batch processing. Top GitHub Tools for PDF Password Removal
qpdf: Widely considered the gold standard for PDF manipulation. It can remove "owner" passwords (restrictions on printing or editing) and "user" passwords (required to open the file) if the password is known.
Command: qpdf --decrypt --password=yourpassword input.pdf output.pdf. Find it at the official qpdf GitHub repository.
PDFUnlock: A free, cross-platform CLI tool designed specifically for instant decryption and batch processing. Find it at the fadeltd/pdfunlock repository.
PDFDeSecure: Focuses on removing usage restrictions (printing, editing, copying) without needing the password in some cases, often used for DRM-like protections. Find it at the abatsakidis/pdfdesecure repository.
Pikepdf-based scripts: Many Python utilities on GitHub, such as shaikahmadnawaz/pdf-password-remover and vikflow/PDF-decrypter, use the pikepdf library for robust decryption. Simple Built-in Method (No Software Needed)
If you already have the password and can open the file, you can "produce a paper" copy or a new digital file without a password by using the Print to PDF feature: Open the PDF and enter the password. Press Ctrl + P (Windows) or Cmd + P (Mac).
Set the printer destination to Save as PDF or Microsoft Print to PDF.
Save the new file; this version will be completely unlocked.
How to remove password from PDF: Unlock a PDF | Adobe Acrobat : A powerful, cross-platform CLI tool that acts
1. Open the PDF in Acrobat Pro on Windows or Mac. 2. Choose Tools › Encrypt › Remove Security.
How to remove a PDF password in 3 easy steps | Adobe Acrobat
When searching for "PDF password remove GitHub," you are looking for tools that fall into two main categories: recovery tools (which guess the password) and removal tools (which decrypt the file if you already know the password).
Here is a curated breakdown of the most interesting, popular, and effective repositories on GitHub for this purpose, sorted by use case.
GitHub Stars: ~2.5k | Language: C | License: GPLv2
When you need to remove a User password (the one that prevents opening the file), pdfcrack is the tool. It does not remove the password; it finds it via dictionary attack or brute force.
Why it is "Top" rated:
How to use it:
# Clone the repo
git clone https://github.com/robins/pdfcrack.git
cd pdfcrack
make
5. WeasyPrint + PyPDF2 (Python Scripting Combo)
GitHub Stars: ~6k combined | Language: Python
For developers who want to integrate PDF password removal into their own applications (SaaS, automation bots), this Python-based approach is the top GitHub choice. pikepdf (a modern fork of PyPDF2) essentially wraps QPDF in Python. Supports wordlist modifications (rules)
Script to remove owner password:
import pikepdf
with pikepdf.open("locked.pdf", password="") as pdf:
pdf.save("unlocked.pdf")
This is the cleanest script on GitHub for batch processing thousands of PDFs.
Extract the hash from the PDF
python run/pdf2john.pl target.pdf > hash.txt
Comparison Table
| Tool | Interface | Preserves Quality? | Platform | Ease of Use |
|------|-----------|--------------------|----------|--------------|
| QPDF | CLI | ✅ Excellent | All | Moderate |
| Stirling-PDF | Web UI | ✅ Good | Docker/Java | Very Easy |
| pdfcpu | CLI | ✅ Good | All | Easy |
| pypdf | Python script | ✅ Good | All (with Python) | Easy (if coding) |
| PDFsam | Desktop GUI | ✅ Good | Windows/Mac/Linux | Very Easy |
4. The JavaScript Option: pdf-lib
Repo: Hopding/pdf-lib
Language: JavaScript/TypeScript
Use Case: Web apps or Node.js environments.
If you are building a website and need to handle PDFs client-side, this is the go-to library.
- Why it’s interesting: It runs entirely in the browser (no server needed). You can create a simple HTML interface where a user drops a PDF, enters the password, and the script strips the encryption right in their browser without uploading the file anywhere (great for privacy).
Common approaches on GitHub
- Brute-force/password-cracking tools — try many passwords (slow for strong passwords).
- PDF libraries/scripts that remove owner (permissions) restrictions when encryption is weak or known key present.
- Wrappers around qpdf/pdftk — use official tools to decrypt when password is known.
- GUI front-ends that call command-line utilities.
2. The Best Python Utility: pikepdf
Repo: pikepdf/pikepdf
Language: Python (C++ bindings)
Use Case: Python developers or automation scripts.
pikepdf is a Python wrapper around qpdf. It is widely considered the most reliable Python library for manipulating PDFs because it avoids the quirks of pure-Python implementations by using the powerful C++ qpdf core.
- Why it’s interesting: It allows you to open a password-protected PDF and save it without a password in just a few lines of code. It also handles permissions (owner passwords) very gracefully.
- Code Snippet:
import pikepdf
4. pdf-redact-tools (Bash + Ghostscript)
GitHub: firstlookmedia/pdf-redact-tools
Top feature: Focus on security – flattens and removes hidden data + passwords.
Deep features:
- Removes both user and owner passwords by rasterizing then re-encoding (lossy but effective).
- Can sanitize metadata, annotations, form fields, and embedded files.
- Uses Ghostscript under the hood – very reliable for unlocking encrypted PDFs if you know the user password.
- Not suitable if you need vector/text preservation.