FitFileSize

Free · No sign-up

Compress a PDF to 50 KB

Some portals cap each document at 50 KB. A single page made from text fits easily; a single scanned page usually can too.

Drop your file here

or choose a file · PDF, JPG, PNG, WebP, TIFF or BMP

Your upload limit
  • Deleted automatically
  • Free, no watermark
  • Quality kept where possible

Getting a PDF under 50 KB

50 KB is about the smallest limit you will see for a PDF, and it is realistic for one page. A page exported from Word or a web form is mostly text and is often already under it after the lossless cleanup.

A scanned page is a photo, so it has to shrink. We lower its resolution step by step, as far as 50 dpi for color and 100 dpi for black and white, and keep the first step that fits. Several scanned pages at 50 KB will usually hit that floor, and then you get the smallest file we could make with a note saying so.

Tips

  • Upload one page per file. At this size every extra scanned page makes the rest blurrier.
  • Scan certificates and marksheets in black and white if the form accepts it. It is far smaller than color at the same sharpness.
  • If the scan is a phone photo, crop away the table or desk around the paper first.

How it works

  1. 1

    Drop your file

    A PDF or an image. It goes over an encrypted connection and nowhere else.

  2. 2

    Pick your limit

    Choose the size the form asks for. We start with a cleanup that changes nothing you can see.

  3. 3

    Download it

    If it needs more, we find the gentlest quality setting that still fits, and delete everything soon after.

Questions

Is it free?

Yes. There is no sign-up and no watermark.

What happens to my file?

It is processed on our server and deleted automatically: the original 5 minutes after the run finishes, the compressed file after 10. A file you upload but never compress is deleted within 30 minutes. You can also delete everything right away with Delete now.

Will it look worse?

We try a lossless cleanup first, which does not change how the file looks. Only if that is not enough do we lower image quality, and we pick the gentlest setting that still fits your size.

What if my file cannot get that small?

You get the smallest version we could make and a clear note saying so, instead of a file that silently misses the limit.

Why does the size page aim a little under its limit?

Some sites count a kilobyte as 1000 bytes and others as 1024. We aim under the stricter one, so a 200 KB page aims for 200,000 bytes and the file passes either way.

Common size limits