How it works
- Drop your PDF into the box above.
- The limit is already set to 100 KB. Change it if you need to.
- Download the compressed PDF once it fits.
About this tool
Some portals limit document uploads, such as certificates or ID scans, to 100 KB.
A one- or two-page scan usually fits in 100 KB and stays readable. Long scanned documents may not, because each page needs some space.
The tool shrinks the photos and scans inside the PDF step by step until the file fits. Text and drawings are never changed, so typed text stays sharp and searchable.
Frequently asked questions
Are my files uploaded to a server?
No. Everything happens inside your browser, on your own device. Your files are never sent anywhere, and the tool keeps working even if you go offline after the page has loaded.
What if my PDF can’t get under 100 KB?
The tool tells you the smallest size it could reach. Split the PDF into parts with Split PDF, or remove pages you don’t need, then try again.
Can it compress a password-protected PDF?
No. Remove the password first, then compress the file.
Is it free?
Yes, completely free, with no sign-up, no watermark and no daily limit.