Free tool
Compress a PDF to under 300 KB
300 KB is a common limit for scanned documents on job, admission and government portals. This tool gets your PDF under it at the best quality that fits, entirely in your browser.
Other sizes: Compress PDF to a size · Compress PDF to 100 KB · Compress PDF to 200 KB · Compress PDF to 500 KB · Compress PDF to 1 MB · Compress without a size limit
Need other people to sign?
PactPen sends your PDF to each signer by email, records their consent, time and IP address, and gives you the signed PDF with a certificate of completion. Free for 5 documents a month.
Try PactPen freeHow it works
- Choose the PDF you need to upload.
- Press Compress to 300 KB.
- Open the result to check it reads clearly, then upload it.
Questions
Is my PDF uploaded?
No. Everything happens inside your browser. The file never leaves your device, which matters for ID cards, certificates and other personal documents.
How many pages fit in 300 KB?
Roughly three scanned pages full of text at a readable 100 DPI, and more when the pages are lighter. Longer documents still fit at a lower resolution; the tool warns you if small print may have become hard to read.
Why can I no longer select the text?
To reach a small size, each page is redrawn as an image. If the original was already small enough with its text kept, you get that version instead, and the page tells you.
Can I aim for a different size?
Yes, use Compress PDF to a size and type any limit.