Free · No upload · Automatic target

Compress PDF to 300KB

Need your PDF under 300KB? Drop it below — PDFBison automatically adjusts compression until your file hits the target, entirely in your browser. Nothing is uploaded.

0 bytes uploaded · processing happens on your device

Drop your PDF here

One PDF file · target size 300KB

No sign-up. No watermark. Your file never leaves this device.

Target size: 300KB Need a different limit? 200KB · 500KB · 1MB

Done — under 300KB

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How to compress a PDF to 300KB

Step 1

Add your PDF

Drop the file into the box above or tap Select PDF. Scanned documents, forms, and certificates all work.

Step 2

Let the target do the work

Press Compress. PDFBison tests progressively stronger settings and stops as soon as your file fits under 300KB — no manual quality guessing.

Step 3

Check and download

You see the before and after sizes instantly. Preview the result, then submit it to your portal or attach it to your email.

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