Compressify
Compress PDF to 100KB
Shrink any PDF to around 100KB — perfect for application forms and exam portals with strict upload limits.
Open the Compressor →Many government and exam websites cap PDF uploads at 100KB, and a scanned document is usually far larger. Compressify rasterises and re-compresses each page so the whole PDF drops to roughly 100KB while staying readable. Because everything runs in your browser, your document is never uploaded to a server.
Use the Strong level for the smallest result, then step up to Balanced if you have headroom under the limit.
How to compress pdf to 100kb
- Click Open the Compressor above — it opens with the PDF tool ready.
- Select your PDF from your device.
- Adjust the compression until the file is around 100 KB.
- Download the smaller file — everything happens privately in your browser.
Frequently asked questions
How do I get a PDF exactly under 100KB?
Open the compressor, choose the Strong level, and check the resulting size shown after compression. If it is still above 100KB, the file is very image-heavy — try splitting it or lowering the page resolution.
Will the text still be readable?
Yes. Pages are re-rendered as compressed images; at 100KB normal A4 documents remain clearly legible, though very fine print softens slightly.
Is it safe for sensitive documents?
Yes — compression happens entirely in your browser, so your PDF never leaves your device.