Question 1

How does image compression work?

Accepted Answer

The tool re-encodes your image as JPEG at progressively lower quality until the file size matches your target. A binary search algorithm finds the exact quality level needed. Your image stays on your device.

Question 2

Will the image quality be bad after compression?

Accepted Answer

For typical exam form requirements (20-100 KB), the quality loss is minimal and not noticeable at the small sizes forms display photos. The tool prioritizes keeping faces clear.

Question 3

What's the minimum KB I can achieve?

Accepted Answer

Depends on image dimensions. A 200×200px photo can compress to under 10 KB. For larger photos, you may need to resize first. Use our Resize Photo tool to reduce dimensions before compressing.

Compress Image to Exact KB