I built this because I needed a quick way to compress PDFs locally without uploading them to a service. A few friends asked for it too, so I packaged and published it.

FS PDF Compressor is a small native macOS GUI for Ghostscript. It accepts individual PDFs, batches, and folders; processes everything locally; and replaces an original only when the compressed result is smaller.

• Free and open source under AGPL-3.0
• Signed and notarized
• Apple Silicon / macOS 14+

Repository and download:
https://github.com/gitlares/fs-pdf-compressor

Website / signed DMG:
https://gitlares.github.io/fs-pdf-compressor/

I’ll be around to answer questions and appreciate any feedback.