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Exam file kit
RRB photograph rules are highlighted below, but the full kit remains visible so you do not miss other required uploads.
Prepare Railway RRB photo, signature and SC/ST certificate PDF files from the official CEN 07/2024 upload rules, including RRB photo resizer and signature resizer outputs.
Background: White or light background.
Quick max KB presets
How to prepare
Source: Official RRB CEN 07/2024: photo 35 mm x 45 mm or 320 x 240 pixels, JPEG, 40-70 KB.
Background: White paper background.
Quick max KB presets
How to prepare
Source: Official RRB CEN 07/2024: signature 50 mm x 20 mm or 140 x 60 pixels preferred, JPEG, 30-70 KB.
Quick max KB presets
How to prepare
Source: Official RRB CEN 07/2024: SC/ST certificate upload should be PDF format and up to 500 KB.
Date notes
RRB applicants usually need more than a compressed file. Use this page to prepare the source-backed files, then finish the remaining steps on the official portal.
SarkariDoc cannot submit the form, capture live portal photos, make payments, or edit RRB online application. Keep the official portal open for final submission.
Each rule below comes from the official RRB source, last checked on 2026-05-25. Portals reject files that break these rules even when the KB size is right, so check your file against them before final submission.
Official source wording: Official RRB CEN 07/2024: photo 35 mm x 45 mm or 320 x 240 pixels, JPEG, 40-70 KB.
Official source wording: Official RRB CEN 07/2024: signature 50 mm x 20 mm or 140 x 60 pixels preferred, JPEG, 30-70 KB.
Official source wording: Official RRB CEN 07/2024: SC/ST certificate upload should be PDF format and up to 500 KB.
Every update to RRB's upload rules is listed here, newest first, with the source behind each change.
No spec changes recorded since verification on 2026-05-25, against RRB CEN 07/2024 Isolated Categories official notification.
RRB CEN 07/2024 is a Railway Recruitment Board notification with detailed photo, signature and SC/ST certificate upload specifications. Its application window is closed, but the upload rules are useful as a source-backed Railway preset.
Railway exam applicants who need a photo, signature or applicable certificate upload to match RRB online application validation rules.
Not an official government website. Check the current official RRB notification before submitting.
Each artifact below links to the exact section of the official source PDF where the spec is defined.
Photo should be colour passport photograph, 35 mm x 45 mm or 320 x 240 pixels, JPEG, minimum 100 DPI, and 40-70 KiB.
Signature should be JPEG, minimum 100 DPI, 50 mm x 20 mm or 140 x 60 pixels preferred, and 30-70 KiB.
SC/ST community certificate for free rail travel should be PDF format and up to 500 KiB.
Photograph output is set to 320 x 240 px at 100 DPI, 40-70 KiB and JPG format where the official source supports it.
Signature output is set to 140 x 60 px at 100 DPI, 30-70 KiB and JPG format where the official source supports it.
SC/ST certificate PDF output is set to up to 500 KiB and PDF format. The official source does not fix pixel dimensions for this file, so keep it clear and legible.
First check the current official notification. Then resize the rejected photograph on this page and re-upload the generated file.
No. This is a helper page built from official sources. Always check the official portal and notification before final submission.
