MinimalPDF Compress

What it does

Bundled dependencies

The README says required command-line tools are bundled, so users do not need to install Ghostscript or other tools separately.checked 8 Oct 2026

Compression modes

It offers lossy compression with image downsampling, a lossless mode, PDF/A-2b conversion, and image removal.checked 8 Oct 2026

Compression tools

The compression pipeline uses tools including Ghostscript, cpdf, pikepdf, oxipng, pngquant, jbig2, and ECT.checked 8 Oct 2026

Download format

The latest release offers a portable .exe or .zip, and the maker says the .zip starts faster because it is already unpacked.checked 8 Oct 2026

License

The repository lists the AGPL-3.0 license.checked 8 Oct 2026

Local processing

The maker says PDF processing happens locally and the application does not send files or data over the internet; network activity occurs when users click Check for Updates or Buy me a coffee.checked 8 Oct 2026

Lossless caveat

The README says the lossless mode is still being worked on and is not truly lossless yet.checked 8 Oct 2026

Password limitation

The app can remove an owner password without knowing it, but requires the password to decrypt a user-encrypted PDF.checked 7 Oct 2026

PDF/A limit

The README notes PDF/A conversion can increase file size because it may add structural data.checked 8 Oct 2026

PDF/A limitation

Converting to PDF/A-2b can increase file size.checked 7 Oct 2026

PDF utilities

Utilities include merging, splitting or extracting pages, rotating, deleting pages, password encryption or decryption, watermarks, headers and footers, table of contents generation, metadata editing, PDF-to-image conversion, and repair attempts.checked 8 Oct 2026

Portable download

The release page offers an .exe and .zip described as the same portable app, with the zip starting faster and potentially causing fewer antivirus false positives.checked 7 Oct 2026

Product

MinimalPDF Compress is a Windows application for PDF compression and utility tasks.checked 7 Oct 2026

Purpose

MinimalPDF Compress is an open-source Windows application for PDF compression and utility tasks.checked 8 Oct 2026

Release version

The releases page identifies v1.9.7 as the latest release and says its title bar may display v1.10 by mistake.checked 7 Oct 2026

Support

The README invites users to report problems in Issues and post suggestions in Discussions.checked 7 Oct 2026

Support and contributions

The maker invites users to post problems in Issues and suggestions in Discussions, and welcomes contributions through pull requests.checked 8 Oct 2026

User-encrypted PDFs

The password utility requires the password to decrypt a user-encrypted PDF; the README says owner passwords can be decrypted without knowing the password.checked 8 Oct 2026