Make your photo or signature fit exam and government form limits — exact KB and pixel size.
Photo and signature size for common exams
Requirements change with every notification, so always check your exam's official instructions. Typical limits look like this:
| Form | Photo | Signature |
|---|
| SSC (CGL, CHSL, MTS) | 20–50 KB, JPG | 10–20 KB, JPG |
| Banking (IBPS, SBI) | 20–50 KB, 200×230 px | 10–20 KB, 140×60 px |
| UPSC | 20–300 KB, JPG | 20–300 KB, JPG |
| Railway (RRB) | 30–70 KB, JPG | 30–70 KB, JPG |
One-click presets for your exam: SSC · IBPS & SBI · UPSC · NEET · JEE Main · CUET · RRB
How it works
The tool resizes your image to the pixel size you choose, then finds the highest JPG quality that keeps the file under your KB limit. If the limit is very small, it reduces the dimensions slightly as well. Everything happens in your browser — your photo is never uploaded.
Tips
- Use a recent photo with a plain, light background and good lighting.
- For signatures, sign in black ink on white paper and crop tightly before resizing.
- Need to reduce many photos at once? Try the image compressor.
Frequently asked questions
How do I convert centimetres to pixels for a photo?
Pixels = centimetres ÷ 2.54 × DPI. At 300 DPI, a 3.5 × 4.5 cm passport photo is about 413 × 531 pixels; at 96 DPI it is about 132 × 170 pixels. If the form gives a size in pixels, use that directly.
Does changing DPI change the file size in KB?
No. DPI is only a printing instruction. The file size depends on the number of pixels and the compression quality. To reduce KB, reduce the pixel dimensions or the quality — which is what this tool does.
The form says the photo must be between 20 KB and 50 KB, but mine is too small. What do I do?
Increase the width and height in pixels or raise the quality, so the file gets bigger. Very small or plain images may compress to only a few KB; using a slightly larger dimension usually brings them above the minimum.
Why is my signature rejected?
Common reasons: the signature is too faint, the background isn't white, it's cropped too loosely, or the file is above the size limit. Sign in black ink on white paper, crop close, and use the signature maker to clean the background.
Do I need my photo and signature in one image?
Some forms ask for both in one file. Use the photo and signature joiner to combine them at the exact size required.