Compress PDFs without uploading your files
Make a PDF smaller while keeping its text sharp, selectable and searchable. Choose how aggressively to re-save embedded images, compare the result page by page, and only download when you're happy.
On-device processing. Document contents are processed in your browser, not sent to us. Use sample or anonymised files only.
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How it works
- Choose a PDF from your device.
- Pick a compression mode — Preserve quality is the default.
- Compare the before/after preview and size report.
- Download the smaller PDF, or keep your original.
Supported formats
Input: PDF files (up to ~50 MB works best on phones).
Output: A compressed PDF. If the result isn't smaller, you get your original file back unchanged.
Good to know
- Results vary by document: text-heavy PDFs often shrink very little, while scans and photos shrink more. No fixed percentage is promised.
- The optional page-flattening mode turns pages into pictures — text is no longer selectable. It is off by default and clearly warned about.
- Password-protected PDFs must be unlocked first.
- Free account required — no card, no trial, no watermarks added by us.
Questions
Will my text stay selectable?
Yes. The default modes keep text, fonts, links, bookmarks and form fields intact. Only the optional flatten mode (off by default) turns pages into images.
Why did my PDF barely shrink?
PDFs made mostly of text are already compact. Compression mainly reduces embedded photos and scans. If nothing helps, you get your original back.
Is my file uploaded?
No. Your file is processed entirely in your browser and is never uploaded to a server.