Compress PDF to 250 KB

A free PDF compressor for 250 KB limits: get one to three scanned pages under 250 KB with the text readable. See the size and page 1 first. No upload.

How do I compress a PDF to 250 KB?

To compress a PDF to 250 KB, SafeResize turns the pages into lighter pictures until the file is 250,000 bytes or less, which is under 250 KB whether a website counts 1 KB as 1,000 or 1,024 bytes.

250 KB in bytes250,000 bytes, or 256,000 bytes when 1 KB is counted as 1,024 bytes, as Windows does
250 KB in MB0.25 MB, or 0.244 MB as Windows counts
The PDF you download250,000 bytes or less, so both counts accept it. Windows shows it as 244.1 KB or less.
Each page gets, shared evenlyAbout 125 KB with 2 pages, or 50 KB with 5
Sharpness of each page150 DPI first, then 120, 96, 72, 56 and 45 DPI, stopping at the first that fits

Before you start

Some forms allow 250 KB for each document, between the common 200 KB and 300 KB limits. That is enough for one to three scanned pages with readable text, and tight for more. A phone scan of one page is often 1 MB or more, so even one page has to shrink a lot.

The tool below opens with 250 KB typed in. It saves each page as a picture at 150 DPI and lowers the picture quality until the file fits. Only when even a low quality is too big does it lower the sharpness, to 120 DPI, then 96 and less. If your PDF is already under 250 KB, it says so and you keep your original.

Tips

What we measured: 1 to 8 scanned pages in 250 KB

We ran this page's tool on A4 test scans of a typed page, in Color: a clean scan, like a flatbed scanner makes, and a grainy one, like a phone photo taken in dim light. For each number of pages, this is the sharpness and the picture quality (JPG quality) it chose. Sizes are as the result page shows them; the scans have random grain, so another run can differ a little. Black & white gave almost the same numbers for these grey pages.

Questions and answers

Is 250 KB the same as 0.25 MB?

Close. It is 250,000 bytes when a website counts 1,000 bytes to a KB, and 256,000 bytes when it counts 1,024. In MB, that is 0.25 MB, or 0.244 MB as Windows counts. SafeResize keeps the PDF under 250,000 bytes, so it passes both ways.

Is the 250 KB for each file or for all of them?

Read the form. "Each file" or "per document" means every PDF can be up to 250 KB, and "total" means all of them together. For a total, divide it by the number of files and type that number instead.

My scan has 6 pages. Will it fit in 250 KB?

It will fit, but not sharply. In our test, 6 pages came out at 120 DPI and a low picture quality, about 17%. Zoom in on the small print before you upload, send only the pages the form asks for, or ask whether a bigger file is allowed.

Other sizes

Also useful

Helpful guides