Compress a PDF to 300 KB

300 KB is a sensible default: most portals accept it, and at this size a scan still looks like a scan rather than a photocopy of a photocopy.

No upload. No watermark. No sign-up. Every tool mentioned here runs inside your browser.

What 300 KB buys you

Roughly 1200–1500 pixels of width per page for a typical single-page scan — enough to read a signature, a stamp and a photograph clearly.

For a two-page document you get about half that per page, which is still fine for text-heavy forms.

When to stop compressing

If the preview text becomes hard to read at 100% zoom, stop. A rejected application costs more than a slightly larger file.

If the portal has no stated limit, do not compress at all — or use Safe mode, which only removes internal redundancy.

Questions

Does compressing change the page count?

No. Compression changes image quality, never the number of pages.

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