RRB Railway Signature – 30 to 55KB, 140×60px
Compress your RRB Group D / NTPC signature to 30–55KB at 140×60px in JPG. Free and in your browser.
RRB Group D and NTPC applications require the signature to be 30–55KB in JPG at 140×60px, signed in black ink on white paper. This tool locks the dimensions and compresses to fit.
imageto10kb sizes your railway signature to the exact 140×60 dimensions and keeps it inside the accepted range, so it uploads cleanly — all processed on your device.
How to resize the RRB signature (30–55KB)
- Open imageto10kb. Drag your photo or signature onto the box above, or click to select a file.
- Confirm the preset. The target size and dimensions are already set for RRB signatures. Adjust them if your notification differs.
- Click Compress. The image is resized and compressed in your browser to meet the required file size.
- Download & upload. Download the file and upload it to the official form — it will now pass the size check.
Frequently asked questions
What is the RRB signature size?
RRB requires a 30–55KB JPG signature at 140×60 pixels.
How should I sign?
Use running cursive handwriting in black ink on plain white paper; block capitals are rejected.
Which format is accepted?
JPG/JPEG only.
Do I need to install any software?
No — imageto10kb works in your browser on any device, with nothing to download.
Are my documents uploaded anywhere?
No. Your photo and signature are processed locally in your browser and never sent to a server.