Free PDF Compressor
Optimize your PDF structure to reduce file size. All processing is in-browser — your documents stay completely private.
How much can I compress a PDF?
Text-only PDFs: 10-20%. Image-heavy PDFs: 30-60%. Results vary by content.
Does compression affect text?
No — text is never affected. Only PDF structure is optimized.
Is there a file size limit?
Up to 100MB works reliably in modern browsers.
Why is my PDF barely smaller?
If a PDF is already well-optimized or text-only, compression gains are minimal. This is normal.