Compress PDF to 50 KB
Reduce a PDF to 50 KB or less — for exam forms, job applications and government portals that set an upload limit.
Private by design: your files are processed on your device and never uploaded.
Compress to a specific size
How to compress PDF to 50 KB
- Add your PDF (or several).
- “Reach a size” is already set to 50 KB — change it if your form needs another size.
- Press “Compress PDF” and download the smaller file.
About Compress PDF
The tool tries stronger and stronger settings until your PDF fits under 50 KB, and keeps the best-quality version that fits. Text stays sharp; only the pictures and scans inside the PDF are reduced. If a PDF can't get that small — usually because it's mostly text and fonts — you'll see the smallest size possible.
Questions
How do I compress a PDF to 50 KB?
Add your PDF on this page and press Compress PDF — the size is already set to 50 KB.
Will it still be readable?
Yes. Text stays sharp; photos and scans inside are reduced just enough to fit.
What if my PDF can't reach the size?
You'll see the smallest size possible. Removing extra pages (Remove pages) or splitting the file (Split PDF) helps.
Is it safe to compress a PDF here?
Yes. The work happens inside your own browser, so the file is never uploaded to a server — not ours, not anyone's. That makes it safe for contracts, bank statements, ID cards and other private documents.
Is it really free?
Yes — compressing is completely free, with no sign-up, no watermark and no daily limit.
Can I compress a PDF to 50 KB on my phone?
Yes. It works in the browser on Android phones, iPhones, tablets and computers. Nothing to install. It works best in Google Chrome.