Resize Image to KB
Resize a photo, signature or thumb impression to the exact KB range and pixel size an application portal asks for, with presets for NEET, JEE Main, SSC, IBPS and RRB and a passport photo print sheet.
Runs in your browser — nothing is uploadedFree trial: 1 run of Resize Image to KB every day. After that, 2 credits per run.
Hit the exact KB range and pixel size an application form asks for
Pick the rule from the form you are filling in, add a photo or a scanned signature, and the result appears with its exact byte count checked against the allowed range. Presets carry the numbers from the current NEET, JEE Main, SSC, IBPS and RRB notices, each linked to the notice it came from.
Everything runs in your browser. The crop, the black and white option and the JPEG encoding all happen on your device.
What Resize Image to KB gives you
Minimum and maximum, not just a limit
Many portals reject files that are too small as well as too big. The search looks for the highest quality that stays inside both ends, and shows the size in bytes so there is no guessing.
Pixel rules respected
Exact sizes stay exact. Where a notice says "preferred" or "at least", the size may change to reach the KB range, and the result says when that happened.
Framing for photos and signatures
Zoom, move and rotate with a live frame on your picture, and a face guide for photos. "Whiten the paper" cleans a grey scan so a signature reads clearly.
Print sheets
Make a PDF sheet of 35 x 45 mm photos on 4 x 6 inch or A4 paper, with dashed cut guides, ready to print at a photo lab.
How to use Resize Image to KB
Choose the size rule
Pick the exam and file, one of the "Under N KB" options, or enter a custom range.
Add the image and frame it
Adjust zoom and position until the frame holds what the form wants.
Download
Check the green size line, then download the JPG, or a print sheet for photos.
Other names for this tool
People also look for this as photo resizer in KB, image size reducer, signature resizer, passport photo maker, compress image to KB and exam photo resizer. It is the same tool on this page.
Looking for the opposite job? Image Compressor.
Limitations
- HEIC photos from iPhones cannot be read by most browsers; export them as JPEG first.
- Presets follow the notices on the date shown with each one; always check the current notification before you apply.
Questions about Resize Image to KB
How is a KB counted?
Portals differ, so the result is kept at or above the minimum times 1,024 bytes and at or below the maximum times 1,000 bytes, which passes under either reading.
Is the photo uploaded?
No. Decoding, cropping and JPEG encoding all run in your browser, and the file never leaves the device.
How do I resize a photo to 20 KB without losing quality?
Choose "Under 20 KB". The tool keeps the pixel size and lowers JPEG quality only as far as needed, and reduces the pixel size only when quality alone cannot get under the limit. A tighter crop also helps, because fewer pixels need fewer bytes.
Why does my signature come out below the minimum size?
A small, clean signature on white paper compresses extremely well, so at 140 x 60 pixels it can stay under 10 KB even at top quality. Where the rule calls the size "preferred", the image is enlarged until it reaches the minimum.
Which exam presets are included?
NEET (UG) 2026 and JEE (Main) 2026 photo and signature, NEET finger and thumb impressions, SSC CGL and CHSL 2026 signature, IBPS PO/MT-XVI photo, signature, thumb and declaration, RRB CEN 05/2026 signature, and a 35 x 45 mm passport print photo.
Where is the SSC or RRB photo preset?
There is none, because both now capture the photograph live inside the application form. An old photo re-photographed can get the form rejected, so the tool only offers their signature rules.
What does the DPI setting change?
Where a notice states a DPI, such as 200 for the IBPS thumb impression, that value is written into the JPEG header. It does not change the pixels or the file size, only the resolution the file reports.
Can I change the background of my exam photo here?
No, on purpose. NTA treats computer-made or altered photos as unfair means, so take the photo against a plain white wall instead. The tool crops, resizes and compresses without inventing any pixels.