Compress PDF
Make large PDFs smaller — especially scans and image-heavy files — by re-rendering them at your chosen quality. Private and free, in your browser.
Drag & drop a PDF here
or click to browse
How to compress a PDF
- Upload your PDF.
- Pick a compression level — Low, Balanced or High.
- Compress, review the size saving, then download.
When this works best
This compressor shines on scanned documents and PDFs packed with images, where it can cut file size dramatically. PDFs that are mostly text and already small may not shrink much, since their content is efficient to begin with. Keep your original if you need selectable text.
Frequently asked questions
How does the compression work?
Each page is re-rendered to an optimized JPEG image at the quality level you pick, then rebuilt into a new PDF. This is very effective for scanned and image-heavy documents.
Will the text still be selectable?
Because pages are rasterized to images, the text layer is not preserved — the result looks identical but text isn't selectable. For text-only PDFs that are already small, compression gains are limited.
Are my files uploaded?
No. Everything happens in your browser. Your PDF is never sent to a server.
Which level should I choose?
Start with Balanced. Use High compression for the smallest size when some quality loss is acceptable, or Low for the best-looking output.