Processed entirely on your device — nothing is uploaded
How to use the railway rrb photo & signature resizer
- 1Leave the preset on Photo and drop your photograph onto the box above.
- 2Drag and zoom until the face sits between the dashed guides, then download — the file lands under 70 KB at 35 × 45 mm.
- 3Switch the preset to Signature and drop in your scanned signature.
- 4Crop tight to the ink and download the 50 × 20 mm strip, under 70 KB.
- 5Upload both to the RRB portal, and keep the originals in case a correction window opens.
What RRB asks for
Railway Recruitment Board applications — NTPC, Group D, ALP and Technician applications — are checked on two images before anything else about you is read. Recent notifications have asked for a photograph of 35 × 45 mm between 30–70 KB, and a signature of 50 × 20 mm between 10–70 KB, both as JPG or JPEG. The presets above are set to exactly that, so the file you download fits without a second attempt.
Treat those numbers as a strong default rather than gospel. RRB revises its specification between cycles, and a single line in your own notification overrides anything written here — which is why the size fields stay editable. Open the notice, read the two lines about the photograph and the signature, and if they differ from the presets, type the numbers from the notice.
Two details behind the numbers are worth knowing. The lower bound matters as much as the upper one: a file under 30 KB is rejected as readily as one over 70 KB, and it is the bound candidates trip over, because compressing "as small as possible" is the instinct. And the dimensions are checked as dimensions — a photograph at the right file size but the wrong aspect ratio comes back cropped strangely on the admit card, even when the upload itself succeeds.
Why RRB uploads get rejected
Most RRB upload failures are not really about size. The portal's size check is the one that fails loudly and immediately; the ones that cost people their candidature fail quietly, weeks later, at verification. Three come up again and again:
First, a signature in blue ink — the RRB notices are unusually explicit that black ink is required, and blue is refused at verification even when the upload succeeded.
Second, a photograph below the minimum file size, which happens when a candidate compresses hard for a different form and then reuses that file here.
Third, a photo with a coloured or patterned background, where the boards ask for plain white.
None of those are compression problems, and no resizer can fix them after the fact — which is the honest reason this page spends as many words on the source photograph as on the tool. Get the original right and the rest is thirty seconds of cropping.
Doing both in one visit
The tool above holds both of this form's presets, so photograph and signature are two passes over the same page rather than two different websites. Start with the photograph: drop it in, drag to position the face between the dashed guides, zoom until the head fills roughly the middle two-thirds of the frame, and download. The output is 35 × 45 mm rendered at 300 DPI, encoded at the highest quality that still fits under 70 KB.
Then switch the preset to Signature and load your scan. The face guides disappear — they would be meaningless over a signature — and the crop box changes to the 50 × 20 mm strip the form wants. Crop to just outside the ink with a thin white margin; a signature floating in the middle of an A4 page wastes the whole byte budget on blank paper, which is what makes small signature files look grey and broken up.
Everything happens inside your browser. The photograph and the signature are decoded, cropped and re-encoded by this tab, and neither the image nor its file name is sent anywhere. For an exam application that is not a nicety: a photograph plus a signature plus a name is most of what an identity-fraud attempt needs, and the sites that rank for these queries mostly collect exactly that.
Before you hit submit
Shoot the photograph against a plain white wall in daylight, facing the window rather than with it behind you. That single change fixes more RRB photo problems than any editing: even lighting, no shadow on the wall, no colour cast, and a face that is still legible after the file is squeezed to 70 KB.
Sign on plain white paper with a dark, solid-flowing pen — not pencil, not a fine gel pen on textured paper — and capture it square-on. A high-contrast source is what lets a 70 KB file stay crisp; a faint one cannot be rescued by any tool.
Keep the full-resolution originals somewhere that survives the application: a correction window, a second session, an interview call or the document verification can all ask for the same images again, and re-deriving them from a 70 KB copy means starting from something already degraded.
Railway applications draw an enormous, very mixed field, and the boards respond by checking uploads harder than most: a floor as well as a ceiling on file size, black ink only, white background only. The floor is the one that surprises people. If you have already squeezed a photo to 20 KB for an SSC form, that same file is under the RRB minimum — start again from the original rather than re-saving the small copy, because bytes removed by compression do not come back.
Frequently asked questions
What photo and signature size does RRB want?
Recent notifications have asked for a photograph of 35 × 45 mm at 30–70 KB and a signature of 50 × 20 mm at 10–70 KB, both JPG. This page opens with both presets loaded. Specifications do change between cycles, so confirm against your own notification — the fields above are editable if it differs.
My file came out below the 30 KB minimum. What now?
That is the trap in every "compress as small as possible" workflow. Raise the max-size field toward the ceiling — the tool aims for the best quality that fits under whatever cap you set, so a cap of 70 lands you near 70 rather than far below it. If it still comes out tiny, your source image is already small or very flat; go back to the original photograph rather than re-saving the compressed copy.
Is my photograph or signature uploaded to a server?
No. The cropping, resizing and JPEG encoding all run in this browser tab using the canvas API, and nothing is transmitted. That matters more here than on most pages: a photo and a signature together are sensitive documents, and the usual answer to "rrb photo resize" is a site that takes both onto its own server.
Can I use a photo taken on my phone?
Yes, and most successful applications do. What matters is the framing and the light, not the camera: front-facing, plain light background, no cap or dark glasses, even daylight, face filling most of the frame. Crop it here to 35 × 45 mm and the phone original is more than enough resolution.
Does the file format matter?
It does. RRB portals expect JPG or JPEG, and this tool always writes JPEG — including when your source was a PNG, a WebP or an iPhone HEIC. Renaming a .png to .jpg does not convert it, and the portal's check reads the file's contents rather than its name.
Why does the photograph need a specific aspect ratio at all?
Because the portal prints it. Your photograph is placed into a fixed box on the admit card and on the verification sheet; a file with the wrong proportions is squeezed or cropped by the system to fit that box, which is how candidates end up with a stretched face on their hall ticket. Cropping to 35 × 45 mm here means the box and the image already agree.