Compress PDF to 300KB

Need a PDF under 300KB? Select your file and the tool automatically lowers image quality step by step until the PDF fits — keeping it as sharp as possible.

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Quick answer: Select your PDF, keep the target at 300KB and click Compress. The tool tries higher quality first and stops at the best version that fits.

Compress PDF to:

How to use Compress PDF to 300KB

  1. Select or drag your PDF file.
  2. Check that the target size is set to 300KB (you can change it).
  3. Click Compress and download your PDF under 300KB.

Why do websites ask for PDFs under 300KB?

Bank KYC, insurance claims and some application portals use a 300KB limit per document. Small limits keep their servers fast and their storage costs low, so a file that is even slightly larger is rejected.

How the tool gets your PDF under 300KB

First the tool shrinks only the photos inside your PDF, keeping text sharp and selectable, trying several quality levels. If that is still too big, it saves pages as optimized images and lowers resolution step by step. The first version that fits under 300KB is used, so you get the best quality possible for that size.

How many pages fit?

It depends on how busy the pages are. As a rough guide, at 300KB about 3–7 scanned pages stay readable. Text-only pages compress much better than photos or colored scans.

If your PDF still won't fit

Split the document and upload only the required pages, remove blank or duplicate pages, or scan in black and white instead of color. A scan at 150–200 DPI is plenty for most forms; higher settings make files much larger without helping readability.

Check before you upload

Open the compressed PDF and zoom in on small text such as dates, roll numbers and signatures. If anything is hard to read, try a slightly larger target or remove pages instead.

Frequently asked questions

Will the PDF be exactly 300KB?

It will be at or below 300KB. The tool picks the highest quality that stays under the limit, so the result is usually a little smaller than 300KB.

Will text stay selectable?

Whenever possible, yes: the tool first tries to reach the size by compressing only images. If the limit is too small for that, pages are saved as images; text stays readable but can no longer be selected. The result tells you which method was used.

My PDF is already smaller than 300KB. What happens?

The tool keeps your original file unchanged, so you never lose quality unnecessarily.

Are my files uploaded to a server?

No. Everything is processed directly in your browser using JavaScript. Your files never leave your device, so they stay completely private.

Last updated: · Free to use, no sign-up.

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