Compress image to 40KB

Reduce any image to under 40KB for government exam forms and strict upload size limits.

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JPEG + Tiny + 800px for 40KB target

Compress Image to 40KB | MiniPx — Free, Fast & Private

A 40KB file size limit is common on Indian government exam portals and recruitment forms. MiniPx helps you compress photos and signatures to meet this requirement precisely.

For photos under 40KB: use JPEG format, Tiny preset, and 800px max width. Most photos compress to 20-50KB with these settings. If slightly over, reduce width to 640px.

For signatures under 40KB: JPEG + Tiny + 800px produces signatures of 5-25KB. Signatures compress extremely well because they have few colors and simple shapes.

MiniPx displays the exact compressed size so you can verify before submitting your application. Adjust settings iteratively until you hit the target — each change shows the new size immediately.

Your identity documents stay private. All processing happens in your browser — nothing is uploaded.

How it works

Upload image: Add the photo or signature you need under 40KB.
Set JPEG + Tiny + 800px: Start here. If over 40KB, reduce to 640px.
Verify size: Check the compressed size meets the 40KB limit.
Download: Save and upload to your exam or recruitment portal.

Frequently asked questions

What settings produce a file under 40KB?

JPEG format, Tiny preset, 800px max width. If still over 40KB, reduce to 640px width. This reliably hits the target for all photo types.

Which exams need photos under 40KB?

Various SSC, state PSC, and recruitment portals specify limits around 40KB. Always check your specific exam notification for exact requirements.

Can I compress both photo and signature?

Yes. Process each separately with the same settings. Signatures typically compress to much smaller sizes than photos.

Is the compression private?

Yes. MiniPx processes everything in your browser. No images are uploaded to any server.