Compress an image to 20KB.

Get a photo or signature at or under 20KB for online forms.

  • Free
  • No sign-up
  • Files stay on your device

How it works

  1. Your target is already set. Change it if you need to.
  2. Choose your image.
  3. Check the comparison, then download.

About Compress to 20KB

20KB is one of the tightest limits you will meet, and it is common for scanned signatures on online application forms. At this size, every bit of detail counts.

For the best result, crop first so that the signature or face fills the picture. Empty space uses up room that detail could use. A signature on clean white paper will come out far better than one on a shadowy page, so scan it in good light.

Tips for this size

  • Crop tightly before compressing.
  • Write signatures in dark ink on plain white paper.
  • Check the pixel size your form asks for, and resize first.

Questions

Why does my image look small after compressing to 20KB?

A large photo cannot fit in 20KB at full size, so the pixels are reduced too. Forms usually show images small, so this is normally fine.

My form needs 10KB to 20KB. Will this work?

Yes. Slimfile aims just under your target. Enter 19 or 20 and check that the result stays above your form's minimum.

Other sizes

Compress to 50KBMake a photo 50KB or smaller for application forms and ID uploadsCompress to 100KBReduce any photo to 100KB or less in secondsCompress to 200KBShrink photos to 200KB or under while keeping them sharp on screenCompress to 500KBBring photos down to 500KB with very little visible changeCompress to 1MBReduce large camera and phone photos to 1MB with almost no visible changeCompress to 2MBFit big photos under a 2MB upload limit while keeping full detail