Build software better, together

KDAN-PDF / KDAN-PDF-MCP

Connect Claude and ChatGPT to KDAN PDF — upload, edit, compress, protect, redact, and compare PDFs in chat.

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Updated Sep 23, 2026

lezviebloody6143 / Acrobat-DC-Pro

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Adobe Acrobat Pro is a professional PDF tool for creating, editing, converting, signing, organizing, and securely managing PDF documents on your computer.

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Updated Sep 17, 2026

davidbuenov / CombinarCorrespondencia

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Este proyecto permite realizar combinaciones de correspondencia avanzadas con Microsoft Word, donde el usuario puede elegir que se generen pdfs, que se firmen, que cada documento tenga un nombre específico y que se envíen por correo.

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Updated Feb 13, 2025
VBA

yakovypg / Ypdf

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Cross-platform, free, open-source suite for PDF processing that provides commonly requested features via multiple front-ends and a shared core library

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Updated Jul 14, 2026

ajuremesh / PDFPasswordUnlocker

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This project offers a straightforward solution for retrieving forgotten PDF passwords using Google Colab. With just five simple steps, it efficiently handles passwords of any complexity. Say goodbye to PDF access hurdles and hello to seamless password recovery.

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Updated May 15, 2024
Jupyter Notebook

saket / pdf-password-validator

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A trimmed version of Java's PdfRenderer library that only validates a Pdf's password

pdf pdf-password

Updated May 30, 2017
Java

TuurNeckebroeck / PdfUtil

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Pdf file utilities

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Updated Jan 19, 2020
Java

iditectweb / pdf

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Standalone .NET PDF library, to create, read, modify, edit PDF document in .NET framework

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Updated Nov 5, 2018
C#

Owen-oj / pdf-password-protect

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Laravel package to password-protect all pages in PDFs.

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Updated May 12, 2025
PHP

ridpath / pdfscapel

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PDFScalpel is a forensic PDF analysis and CTF toolkit for security researchers, digital forensics analysts, and penetration testers, providing deep insight into PDF structure, encryption, malware, steganography, metadata, revisions, and document authenticity.

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Updated Feb 3, 2026
Python

rukpat / DecryptPDFs

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If you deal with encrypted PDFs, you need this - bulk password removal for Windows Explorer that learns and auto-tries your passwords.

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Updated Sep 3, 2026
C#

hlotiim / privacy-first-pdf-protector-set-password-in-pdf-free-locally

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Password protect a PDF locally with real AES-256 encryption - a single offline HTML file, no upload, no server, no installation. Free and open source PDF password protector powered by qpdf compiled to WebAssembly.