Compress PDF

Compress a PDF locally in your browser without uploading it. A before/after size comparison is shown when the compression finishes.

100% browser-based · files never uploaded

Drag files here, or click to choose

Drag, click to choose, or paste a single file with Ctrl+V · Up to 50.0 MB per file

Settings

Compression level

🔒 Your files never leave your browser

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Frequently asked questions

Is the file uploaded when I compress it?
No. Compression happens locally in your browser — the file never leaves your computer.
Why is the file still large after compressing?
Scanned documents are high-resolution images to begin with. Try a stronger level, or export the pages as images and re-export them; text-based PDFs usually shrink much more.
Does it blur the text?
It mainly affects the sharpness of embedded images. Keep a backup of the original if a stamped page matters.
How does it work with merging and encryption?
The usual order is: merge → compress → encrypt, then send it out.