# Compress a PDF to 256 KB

> Compress a PDF under 256 KB in your browser. Pre-set to a safe 249 KB target for legacy and odd portal caps.

Canonical: https://mypdf.space/compress-pdf/256kb
Last updated: 2026-10-26

## Answer

Drop the PDF into the compressor below. It’s pre-set to 249 KB so the file passes a 256 KB limit either way. **One or two pages stay sharp**; **about seven to nine plain pages** usually fit at the lowest setting.

## What fits comfortably

One or two pages at good quality, including a light colour page.

## What is squeezed

About seven to nine plain pages at the lowest setting.

## Context

256 KB (a quarter of a megabyte in binary counting) still appears on older portals and some exam systems.

Treat it like a slightly roomier 250 KB field — enough for a short letter or two-page scan without going straight to the floor.

## Tips

- **Merge then compress once** if several pages belong in one field.
- **Unlock bank PDFs** before compressing if the portal rejects protected files.
- **Check small print at 100% zoom** before uploading.

## FAQ

### How do I compress a PDF to 256 KB?

Use this page. The tool is set to 249 KB, tries a lossless pass first, then lowers resolution only if needed.

### Is 256 KB the same as 0.25 MB?

Roughly. Definitions of KB and MB vary; the safe target here is designed to pass either counting style.

### Does this upload my PDF?

No. Compression runs in your browser.

## Related

- [Compress PDF hub](https://mypdf.space/compress-pdf)
- [Compress tool](https://mypdf.space/tools/compress)