Compress PDF to 100 KB

Get your PDF under 100 KB automatically, at the best quality that fits.

Online forms often cap document uploads at 100 KB: marksheets, certificates, ID proofs and resumes. Choose your PDF and the tool tries progressively smaller page resolutions and qualities until the file fits under 100 KB, keeping it as readable as possible.

For multi-page scans, 100 KB is tight. Tick "Black & white" for documents, which makes text clearer and files much smaller.

How to use it

  1. Choose your PDF.
  2. It is compressed to under 100 KB straight away. Change the target if you need to.
  3. Download the compressed PDF.

Questions

Why can't my PDF reach 100 KB?

A document with many pages may not fit. Try Black & white, split it into parts, or remove unneeded pages first.

Will the text still be readable?

Yes for most documents. Open the result before uploading to check.

Are my files uploaded to a server?

No. The tool runs entirely in your browser using JavaScript, so your files never leave your device. You can even disconnect from the internet after the page loads and it keeps working.

Guides

All guides
PDF tools · 23 Oct 2026Compress PDF to 100 KB Without Losing Quality (Free, Online)Reduce a PDF to 100 KB for forms and portals while keeping text readable. What really works for scanned certificates, on phone or PC, free.PDF tools · 23 Oct 2026How to Compress a PDF to Under 200 KB (or 100 KB) for Govt PortalsShrink a scanned certificate or form PDF below 200 KB or 100 KB for government and exam portals while keeping the text readable.PDF tools · 23 Oct 2026Add Page Numbers to PDF From a Specific Page (Free, No Acrobat)Number a PDF starting from page 2, 3 or any page, skip the cover and contents, use Page X of Y, and choose the position. Free, no Acrobat needed.

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