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Compress Image to 10KB

Squeeze a photo down to a 10 KB JPG - the size scanned signatures and thumb impressions are usually capped at.

Why 10 KB, and What Survives at That Size

10 KB is the tightest limit most upload forms use, and it exists for a reason: it is aimed at signatures, thumb impressions and initials, not at photographs. Line art on a white background survives the trip well, because there are only two tones to encode. A face or a landscape will not - at 10 KB a full-colour photo loses most of its fine detail. The compressor tells you when it had to shrink the pixel dimensions to reach the target, so you always know what you are handing over. If your form allows 20 KB or 50 KB instead, use those pages: the extra headroom is worth taking.

How to Compress an Image

1

Upload your image

Pick a JPG, PNG, WebP, or GIF file from your device. It stays on your computer - nothing is sent to a server.

2

Set a target size or quality

Type the exact KB size a form or upload limit requires, tap one of the presets, or switch to the quality slider for manual control.

3

Download the compressed file

Check the before and after sizes, then save the smaller image in JPG, PNG, or WebP.

What People Compress to 10 KB

  • Scanned signatures for exam and recruitment portals
  • Thumb impressions on government application forms
  • Initials and monograms for e-signature fields
  • Small logos going into an email footer
  • Tiny avatars for legacy forums with strict caps
  • Any upload box that rejects anything above 10 KB

Compressing to 10 KB

Will my photo still look good at 10 KB?

A signature or line drawing will. A full-colour photograph will visibly soften, because 10 KB is very little data for a photo. Check the preview before you download - if it is too rough, ask whether the form really enforces 10 KB or whether 20 KB is accepted.

What if the image cannot reach 10 KB?

The compressor keeps lowering quality, and if that is still not enough it scales the image down and tells you it did. You always get the smallest file it could produce, never a silent failure.

Should I use JPG or PNG for a 10 KB signature?

JPG is preset here because it compresses far smaller. If your form specifically demands PNG, switch the output format - but expect to need larger pixel dimensions to fit.

Is the 10 KB limit before or after upload?

Forms check the file you upload, which is exactly what this tool produces. The size shown next to "Compressed size" is the size the form will see.