Compress PDF Online — Reduce File Size Free
Reduce your PDF file size without sacrificing readability. Our free PDF compressor strips redundant data and optimises your document right in the browser — no uploads, no quality loss, no cost.
Drop file here or click to browse
Files stay on your device · Up to 200 MB
Drop multiple files or click to browse
Select multiple files · Up to 200 MB each
Processing…
Done!
How to Use Compress PDF
Why Use Our Compress PDF Tool?
Large PDFs are hard to email, slow to upload, and consume storage. Our compressor uses content-stream optimisation to reduce size while keeping text sharp and images clear. Typical results: 30–90% size reduction.
Frequently Asked Questions
It depends on the content. PDFs with large embedded images compress the most — often 60–90%. Text-heavy PDFs typically compress 10–40%.
No. Text and vector graphics are lossless. Only image quality may be slightly reduced at higher compression settings.
Yes. Scanned PDFs are image-heavy and often compress dramatically.
Up to 200 MB per file.