Converting digital PDFs to simulated scanned PDFs.

A tool for removing PDF protection restrictions.

Command-line, quality-first PDF optimizer. Drop PDFs into input/, get optimized results in output/. Ghostscript + qpdf with optional PSNR quality gate and a never-worse guarantee.

Python (2.7) algorithm to extract data from locked PDF files using the package bsp4;

Remove annotations from PDF files.

Ruby wrapper for qpdf, forked to add support for split pages and decryption with password

qpdf 10.3.1 Windows 32bit binary mirror

Docker image with Alpine Linux and the PDF tools qpdf and Ghostscript

Shell Script Redact PDF using open source softwares

PHP library to work with QPDF: https://github.com/qpdf/qpdf

My company provides the Payslips in Protected PDFs, but in order to keep track of all of the payslips, I needed an tool that Uncrypt the PDF, Merge them and Encrypt again.

PHP class for access QPDF C Interface

GitHub Action that installs qpdf, for PDF files processing in command-line

Docker image for QPDF

Scripts to reorder PDFs for easier multiple page/sheet printing and cutting.

Secure PDF protector: convert to images, apply blur/noise, embed random watermarks, lock with qpdf (extract=no). Anti-copas, anti-OCR, no password needed. Ghostly defense for your files.

PDF compression and manipulation service

Up-to-date qpdf binary buildpack for heroku.