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Compress JPG to 20 KB

Shrink photos and signatures to a size you choose, like 50 KB.

Runs in your browser — files never leave your device

or drop files here

How to compress a signature or photo to 20 KB

Signature uploads are often limited to 10–20 KB. This page is set to 20 KB and finds the sharpest JPG that fits, shrinking the image only as much as it has to.

  1. Add the signature or photo.

  2. Leave 20 KB selected, or type another limit.

  3. Click Compress images and download the JPG.

Passport-style photos for online forms

20 KB is a common limit for the applicant photo on Indian government and examination forms; the PAN form, for instance, asks for a colour photo of 3.5 x 2.5 cm at 200 DPI and at most 20 KB. Phone photos are several megabytes, so the reduction is large, but a head-and-shoulders photo cropped to passport proportions stays sharp enough at 20 KB because the face occupies most of the frame.

Crop before you compress. The tool only reduces dimensions when lowering quality alone cannot reach 20 KB, so a tightly cropped photo often keeps the pixel size the form wants.

If the form rejects the result

Rejections at this size are usually about dimensions or format rather than file size. Check the width and height shown in the result against the form's requirement and crop to that shape in your phone's gallery app if needed. The output is always a JPG, which is what these forms expect; a PNG or WebP you add is converted.

Compress JPG to 20 KB FAQ

Sign on plain white paper with a dark pen, photograph it in good light and crop it tightly. A tight crop makes 20 KB easy to reach.

Yes. It's converted to JPG, with any transparent background turned white.

The PAN card application on Protean (NSDL) is one: its instructions ask for a colour JPEG photo of at most 20 KB. Check your form's own instructions, since limits differ between portals.

No. The tool runs entirely in your browser, so your files are processed on your own device and never leave it.

Yes. Every PDFCraftly tool is free, with no sign-up, no watermark and no email required.

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