Compress PDF
Reduce PDF file size without sacrificing readability.
Drop your PDF
or
PDF up to 100 MB
Stays on your device. This tool runs in your browser — nothing is uploaded.
About Compress PDF
PDFs get large for predictable reasons: embedded fonts, high resolution scans, and the accumulated clutter left behind by the software that produced them. Compressing rewrites the document so that only what is needed to display it remains.
Start with Recommended. It rebuilds the file structure, removes duplicated resources and strips metadata, while leaving text crisp and selectable. If you need to hit a strict email or upload limit, Smaller and Smallest trade image detail for a lighter file.
Compression runs in your browser, so a 40 MB document does not need to be uploaded and downloaded again. Nothing is sent anywhere, and your original file is never modified.
Frequently asked questions
How much smaller will my PDF get?
It depends on what is inside. Scanned or image-heavy PDFs often shrink by 60–90%. A PDF that is mostly text is already compact, so the saving is smaller.
Will compression ruin the quality?
Recommended keeps text sharp and is a good default. Smaller and Smallest trade some image detail for a lighter file.
Is my document uploaded anywhere?
No. Compression happens in your browser, so the file stays on your device.