Resize Image to 100 KB: Free Online Compressor

Some forms allow up to 100 KB, enough for a clear photo or a readable scanned document. The India Post GDS photo (30 to 100 KB), the CTET photo (10 to 100 KB), the JEE Main and NEET UG signature (10 to 100 KB) and the Saudi Arabia e-visa photo (5 to 100 KB) all use it. This page starts the compressor at 100 KB.

1 Choose what the photo is forTarget file size (KB)

Keeps your photo's shapemax 100 KB

2 Add your photo

Drop a photo here or tap to choose
JPG, PNG or WebP · you can also paste (Ctrl+V)

Your photo stays on your device. Face detection and background removal also run on your device.

At 100 KB the tool usually keeps the original pixel size and only lowers JPEG quality a little, so faces and text stay sharp. Images wider than 1600 pixels are scaled down to 1600 first.

How to compress an image to 100 KB

Target file size is already set to 100 KB. Change it if your form gives a different limit.
Pick the photo or scanned document.
Check that the file size line shows ✅, then tap Download.

If the form also gives a pixel size, use its own page instead so the shape is right too, for example the SSC photo or IBPS signature tools, or browse all exam photo and signature sizes.

Forms on this site with a 100 KB limit

These applications accept files up to 100 KB. Some also set a minimum and a pixel size, so their own page is the safer choice.

Form	Pixels	File size
Saudi Arabia eVisa Photo	200 x 200	5 to 100 KB
India Post GDS Photo	320 x 400	30 to 100 KB
India Post GDS Signature	300 x 120	20 to 100 KB
CTET Exam Photo	350 x 450	10 to 100 KB
JEE Main Signature	350 x 150	10 to 100 KB
NEET UG Signature	350 x 150	10 to 100 KB

Other KB tools

Common mistakes

Assuming 100 KB means any shape is fine. Most of these forms also set a pixel size or ratio; their own pages handle it.
Uploading a multi-page PDF where the form wants a single JPG image.
Ignoring a minimum, such as 30 KB for the India Post GDS photo.

Frequently asked questions

How do I reduce an image to 100 KB?

Pick the image on this page; Target file size is already 100 KB. Check that the file size line shows ✅, then download the JPG.

Is 100 KB good enough quality for a photo?

Yes, for forms. A passport-style photo at 100 KB is sharp; the limit mainly removes detail you cannot see on screen.

Is my photo uploaded to a server?

No. Resizing, compression, face detection and background removal all run inside your browser. The photo never leaves your device and nothing is stored.

How do I resize a photo for the Resize Image to 100 KB online?

Pick your photo in the tool on this page, adjust zoom so the face is centred, then download the JPG. It is free and works on any phone or computer.