Compress PDF to 100 KB
Shrink any PDF to about 100 KB for government portals and email limits — runs entirely in your browser.
- Runs in your browser
- No upload on server
- Free, forever
- Add PDF
- Adjust
- Download
Fastest way to hit 100 KB
- Open the PDF Compressor.
- Drop your PDF (nothing uploads — it stays on your device).
- Pick the Smaller preset. If you're still over 100 KB, switch to Custom and drop DPI to 90 and quality to 60%.
- Download the result. Repeat with lower DPI if needed.
How this works — and why it's private
- Aadhaar, PAN, SSC, RRB and most Indian government portals cap uploads at 100 KB.
- Older email systems and legacy CRMs choke on attachments above ~150 KB.
- A 100 KB PDF still reads perfectly at phone screen size — you're mostly discarding invisible resolution.
- Bluebird's compressor rasterises pages at a lower DPI, re-encodes JPEGs, and drops unused fonts — all in your browser.
Why 100 KB is the magic number
Also useful
- Compress PDF to 200 KB — for portals with a slightly higher limit.
- Compress PDF to 256 KB — MahaDBT / Maharashtra scholarship cap.
- Compress PDF to 500 KB — safer for scanned documents.
- Image Compressor — shrink JPGs and PNGs to any target size.
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