Compress PDF
Make a big PDF small enough to email, upload or share on WhatsApp.
Drop your file here
PDF · up to 10.0 MB each, 10 at a time (Lifetime: 100 MB, 100 files)
Converted securely on our server. Your file is sent over HTTPS, converted, and deleted as soon as the result is sent back. We never store or look at it.
Scanned documents and PDFs full of photos are often too big for email attachments, job portals and government upload forms. Compressing re-saves the images at a sensible resolution and removes duplicate data, often making the file several times smaller.
Choose Recommended for documents you'll read on screen, Strong when you need the smallest possible file, or Light to keep print quality. If your PDF is already as small as it can be, you get the original back, so it never gets bigger.
Good PDF compression needs Ghostscript, which can't run in a browser, so this tool sends your file to our converter and deletes it as soon as the result is ready.
How to use the Compress PDF tool
Add a PDF
Up to 10 MB free (100 MB on Lifetime).
Choose the compression
Recommended suits most documents.
Compress and download
You'll see the new size before you download.
Tips
- Scanned pages and photos shrink the most; text-only PDFs are usually small already.
- Strong compression can blur small text in scans: check the result before you send it.
- To shrink further, remove pages you don't need with Split PDF first.
Frequently asked questions
How much smaller will my PDF get?
PDFs with photos or scans often shrink by 50–90%. PDFs that are mostly text may change very little, because text is already compact.
Will the quality drop?
Images are resampled: to 150 DPI for Recommended (sharp on screens), 72 DPI for Strong and 300 DPI for Light. Text and vector graphics stay sharp at every level.
Can I compress password-protected PDFs?
No. Remove the password first, then compress.
Is there a limit?
Free: files up to 10 MB and 20 compressions an hour. Lifetime: up to 100 MB.
Is my file safe?
Your file is sent over an encrypted connection to our converter, processed, and deleted as soon as the PDF is sent back, usually within seconds. It is never stored, shared or looked at.
Related tools
Share it with a QR code
Put your file online (Google Drive, Dropbox or your website), then make a QR code for the link. People can scan it from a poster, menu or business card.