Why 30 KB is a popular limit
A 30 KB JPG is big enough to show a face clearly at the small sizes forms display, and small enough for portals that handle huge numbers of applicants. You will see it on exam registrations, university admissions, job applications, ration card and pension forms, and many state government services. Some forms set a range, such as 20 to 30 KB, so check whether there is also a minimum size.
What the tool does to your photo
It keeps your photo as large and sharp as possible. First it looks for the highest JPEG quality that stays under 30 KB. Only if the photo is still too heavy does it reduce the pixel dimensions, in small steps, until it fits. Phone photos are often 3000 pixels wide or more, so for those a resize is normal and expected.
Get the photo right before you compress
- Use a plain, light background and even light on the face, with no shadows.
- Crop to head and shoulders so the face fills most of the frame.
- If the form gives exact pixel dimensions, for example 200 x 230, resize to those first, then compress to 30 KB.
- Save the final file with a simple name such as photo.jpg - some portals reject long names or spaces.
Need a minimum size too?
If the form says 20 to 30 KB and your result comes out lower than 20 KB, the image was already small. Try a larger original, or set the target to 28 KB so the tool keeps more detail.