Compress PDF to 300 KB
Keep crisp text and images while landing under a 300 KB upload limit.
Files are optimized losslessly when possible. To guarantee an exact size, larger files are converted to images, which can soften text and remove the selectable text layer.
How it works
- Step 1
Drop in your PDF. It stays on your device.
- Step 2
Pick a target size (or type a custom KB value).
- Step 3
Download a PDF compressed to your target in seconds.
Why compress a PDF to 300 KB?
- Multi-page form submissions
- Scanned ID and certificate uploads
- Job and visa portals with 300 KB caps
Compress to another size
Frequently asked questions
Are my files uploaded to a server?
No. Compression runs entirely in your browser using WebAssembly. Your PDF never leaves your device, which makes this safe for KYC, banking, and government documents.
How do you hit exactly 300 KB?
We re-encode each page as an image and search across quality and resolution settings until the rebuilt PDF lands at or just under 300 KB, keeping the best quality that still fits.
Is it really free with no watermark?
Yes. No sign-in, no per-hour task caps, no watermark, and no file-count limits, unlike most incumbents.
Will the text stay selectable?
To guarantee an exact size target, pages are rasterized, so text becomes part of the image. For upload-to-portal use cases this is exactly what is needed. If you need selectable text, keep your original.