Compress PDF files, free & private
Shrink your PDF in seconds. No uploads, no sign-up, no watermarks — your file never leaves your device.
Drop your PDF here
or browse to upload · up to 200 MB
Completely private
Files are processed locally with WebAssembly. Nothing is uploaded, stored, or seen by anyone.
Free forever
No accounts, no paywalls, no file limits per day. Compress as many PDFs as you like.
Keeps it sharp
Text and vectors stay crisp. We only shrink oversized images, so your document still looks great.
How it works
Add your PDF
Drag & drop or browse to select a PDF from your device.
Pick a level
Choose Light, Recommended, or Strong compression.
Download
Get your smaller PDF instantly — no email or sign-up.
Frequently asked questions
Is it really free?+
Yes. PDF compression here is completely free. The site is supported by ads shown on the page — there's no paywall, watermark, or sign-up.
Are my files uploaded to a server?+
No. Your PDF is processed entirely inside your browser using WebAssembly. The file never leaves your device, which makes it private and fast.
How much smaller will my PDF get?+
It depends on the file. Scanned documents and image-heavy PDFs often shrink by 50–80%. PDFs that are mostly text, or already optimized, shrink less — and we never hand you a file that's larger than the original.
Will it reduce the quality?+
Text and vector graphics stay sharp. We shrink large embedded images by downscaling and re-encoding them. Pick the Light level to keep images closer to the original, or Strong for the smallest size.
Is there a file size limit?+
You can compress PDFs up to 200 MB. Very large files use more memory because everything runs locally in your browser.