Compress PDF to 100KB
Shrink your PDF under 100KB automatically. Free, no signup, and your file never leaves your browser — perfect for upload limits on portals and forms.
Drop your PDF here
or click to choose a file — no size limit, no signup
🔒 Your files never leave your device.
How it works
- Drop your PDF into the box above.
- The file is shrunk automatically, step by step, until it is under 100KB.
- Download the compressed PDF.
Frequently asked questions
How do I compress a PDF to 100KB?
Drop your file above and the size is reduced automatically until it is under 100KB. No quality sliders, no settings to figure out.
Is my PDF uploaded to a server?
No. Everything happens right on your device. Your file is never sent to us — so there is nothing anyone else could see or store.
Will the text stay selectable?
Yes, in most cases. The tool first shrinks only the pictures inside your PDF, so the text stays sharp and selectable. Only for very small targets does it switch to a stronger mode — and it tells you when that happens.
Is there a file size limit?
No. There are no size caps and no daily quotas — files of any size are fine.
What if my PDF cannot reach 100KB?
The tool returns the smallest file it could produce and tells you the final size. Very long documents may not fit under 100KB at readable quality.