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PDF Compressor
Reduce PDF file size with adjustable compression levels. Repack or re-encode pages locally — nothing leaves your browser.
About PDF Compressor
Upload a PDF and reduce its file size with adjustable compression levels. Choose lossless repack for text documents or image-based compression for scans and photos — all processing happens locally in your browser.
Features
- Light, balanced, and strong compression presets
- Lossless repack mode for text-heavy PDFs
- Before and after file size comparison
- Page-by-page progress for large documents
- 100% client-side — no uploads to a server
How to use
- 1Upload a PDF by dragging it in or clicking to browse.
- 2Select a compression level that fits your quality needs.
- 3Click Compress PDF, then download the smaller file.
Frequently Asked Questions
Are my PDFs uploaded to a server?
No. Compression runs entirely in your browser. Your documents never leave your device.
Will compression reduce quality?
Light and balanced modes re-encode pages as JPEG with moderate quality loss. Repack mode is lossless and only optimizes PDF structure.
Why did my file get larger?
Text-only PDFs may grow when rasterized. Use Repack only for those files, or try a lighter compression level.
Related PDF Tools
- PDF MergerCombine multiple PDF files into one document.
- PDF SplitterSplit a PDF into separate files by page or range.
- PDF to TextExtract selectable text from PDF documents.
- PDF Page ExtractorExtract specific pages from a PDF into a new file.