DocPro

Compress JPG to 50KB

Typical for small photo and document upload boxes

Pre-filled: target 50 KB, JPG output. Change either once you add a photo.

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About this task

50 KB turns up on many government, exam and university upload forms for a profile photo or a scanned signature or ID. It is big enough for a face photo at modest pixel dimensions, but far below what a camera produces.

The tool works down from your original: it looks for the highest JPG quality that still fits under 50 KB, and if even a low quality is too big it shrinks the picture in small steps. A simple portrait against a plain background keeps its quality; a busy scene shrinks more because textures cost bytes.

A portrait for an application photo is also easier to compress if it is cropped tightly and has an even background. If the form needs a specific passport-style crop, make that first with the passport photo tool and set a 50 KB limit there.

Some photos cannot reach 50 KB without visible loss. The result shows the final size and marks the file if the target was not reachable. PNG files cannot be compressed to a size target, only resized, so choose JPG output.

How to do it

  1. Add your photo or photos. JPG, PNG, WebP and other common formats open, and you can add several at once.
  2. The target is already set to 50 KB and the output is JPG. Change either if your site needs something else.
  3. Press Compress. Quality is lowered first, and the picture is made smaller only if quality alone is not enough.
  4. Check the size shown for each image, then download. Several images come as one ZIP.

Compress image is a DocPro Pro tool on the web. You can open it, choose your file and set every option without an account; the final step asks you to sign in to DocPro Pro (A$5.99/month after a 7-day free trial, cancel anytime). Free tools never ask.

Frequently asked questions

Is 50 KB the same as 50 000 bytes?

In DocPro 50 KB is 51,200 bytes. If a site counts 1,000 bytes per KB and rejects the file by a hair, set the target to 48.

Does it work on a photo from my phone?

Yes. Phone photos are several megabytes, so the tool will usually reduce the pixel size as well as the quality to fit.

Can I do many photos at once?

Yes. Add as many images as you like and each is squeezed to the target. They download as a ZIP.

Other sizes and targets

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