Free open-source web software for signing PDF (alone or with others) and also organize pages, edit metadata and compress pdf
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Updated
Aug 3, 2026 - JavaScript
Free open-source web software for signing PDF (alone or with others) and also organize pages, edit metadata and compress pdf
The web app is a PDF processing tool that runs entirely in browser using Ghostscript WebAssembly. It provides the main features: compress, merge and split pdf files.
Batch shrink scanned PDFs, Electron GUI wrapper for GhostScript
Cloud PDF compressor
FreeDF - Free online PDF editor: edit, merge, split, compress PDFs in-browser (no signup)
This is just a simple PDF compressor uses the Ghostscript command.
LiteFile is an all-in-one PDF and image toolkit that enables compression, conversion, editing, resizing, cropping, merging, splitting, and batch processing through a fast and intuitive web interface.
Compress images and PDFs to an exact size cap — 100% in your browser. No uploads, no tracking.
A client-side pdf compressor that runs Ghostscript via WebAssembly
Client-side PDF compressor with adaptive target sizing in a dedicated Web Worker.
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