Shrink a photo to an exact KB or pixel size
SSC, railways, universities — every form has its own KB limit for the photo and the signature. Pick a preset (20-50 KB photo, 10-20 KB signature) or type your own KB and pixel size. The tool adjusts quality automatically until the file is under your limit.
Application portals almost always cap the upload size, and the cap is small: 20 KB or 50 KB for a photo, 10 KB or 20 KB for a signature, sometimes 100 KB for a document. A photo straight from a phone camera is 2 MB to 6 MB — fifty to three hundred times over the limit. The form does not explain this politely; it just refuses the file.
Some portals also insist on exact pixel dimensions, most often 413 × 531 for a photo, which is 3.5 × 4.5 cm at 300 dpi. Both boxes are on this page so you can satisfy a size limit and a dimension rule in one go.
Sign in black or dark blue ink on plain white paper. Photograph it in daylight from directly above, then crop tightly to the signature itself. Choose the signature preset here and it will come out around 3.5 × 1.5 cm and under 20 KB.
If the background looks grey rather than white, the Document Scanner on this site has a black & white mode that cleans a signature up nicely before you resize it.
Every step down in KB throws away a little detail. A face photo holds up well to about 20 KB and starts to look blotchy below that. A signature is mostly white space and survives 10 KB comfortably. Text documents suffer the most — if you are shrinking a scanned page, shrink the PDF instead, which handles pages more intelligently than squeezing a single image.
If a form wants 20 KB and your photo looks poor at that size, reduce the pixel dimensions first. A smaller image needs far less compression to hit the same KB target, so it ends up looking better.
| Format | Use it for |
|---|---|
| JPG | Photos, signatures, anything a government form accepts. Smallest files for photographs. |
| PNG | Screenshots, logos, images with sharp lines or transparency. Larger files. |
| WebP | Images for your own website — smaller than JPG at the same quality, but many forms will not accept it. |
When in doubt on a government portal, choose JPG.
It adjusts the quality repeatedly and keeps the best-looking file that still fits under your limit.
At very small limits (10 KB) some quality is lost. Reducing the pixel size as well gives a better result.
No — choose JPG for that.
No. The resizing happens in your browser and the image stays on your device.
Reduce the width and height as well. There is a floor to how small a given number of pixels can be squeezed, and lowering the dimensions moves that floor down.
About 413 × 531 pixels at 300 dpi, which is the figure most Indian forms quote. The form photo preset fills these in for you.
One at a time on this page. It takes a few seconds each, and doing them individually lets you check every result before you upload it.
No, the orientation is kept. If your photo comes out sideways it was already stored that way by the camera — rotate it before you resize.
It will, but for multi-page scans a PDF is the better container. Use Compress PDF instead.
🔒 Everything on this page happens inside your browser. Your file is never uploaded to a server.