Resize Signature to 50x20 mm
Instantly crop your scanned signature to exactly 50 mm (width) x 20 mm (height) for RRB applications and exam portals.
Click to Upload Your Signature
Upload a photo of your handwriting • Supports JPG, PNG
Frame Your Signature
Drag the crop box to center your signature cleanly without cutting off the edges.
Output Settings
Locked to the official Railway standard.
RRB and similar portals require files under 20KB or 30KB.
How to Resize Your Signature to 50x20 mm
Upload Your Signature
Sign your name in blue or black ink on a blank piece of white paper. Take a clear, bright picture with your phone and upload it here.
Frame the Rectangle
Our crop box is permanently locked to the exact 50 mm width by 20 mm height proportion. Simply drag it so your handwriting is perfectly centered.
Save & Apply
If your application requires a strict file size limit (like "under 20KB"), type it in the settings box. Click download to get your perfectly compliant JPG.
Why Do You Need a 50x20 mm Signature?
Standard for Railway (RRB) Exams
The Railway Recruitment Board (RRB) in India explicitly requires candidates to upload their scanned signature in exactly 50x20 mm (5x2 cm) dimensions for NTPC, Group D, and ALP exams.
Guarantees Fast Acceptance
Official government form portals scan your uploaded image instantly. If the dimensions are out of proportion, or if the file isn't sized perfectly, your application gets blocked. Our tool prevents this error.
Total Privacy Protection
We respect the extreme security of your personal signature. The cropping and compression happen strictly inside the memory of your own device's web browser. We never upload your signature to remote servers.
Built-in KB Compressor
RRB exam portals state your 50x20 mm signature must be "Between 10KB and 20KB". You can do both tasks right here. Our built-in compressor shrinks the data size while keeping the ink crisp and dark.
Frequently Asked Questions
At the government-mandated print standard of 300 DPI, a 50x20 mm signature translates to exactly 591 pixels in width and 236 pixels in height. Our tool automatically performs this conversion for you.
Always sign your name in running handwriting (do NOT use all capital letters). Use a thick blue or black ink pen on a piece of unlined, pure white paper. Take the photo in bright daylight to avoid casting shadows over the paper.
Simply look at the Settings box on the right side of the editor. Find the "Max File Size" input and type "20". When you click download, our algorithm will mathematically compress the photo to fit perfectly under 20KB while retaining the 50x20 mm aspect ratio.
Yes, it is completely secure. We use client-side processing, which means the cropping, editing, and resizing of your highly sensitive signature happens strictly on your own phone or laptop memory. Nothing is ever sent to our servers.