Signature Resizer
100% FreeResize a signature image to exact pixel dimensions and a target KB size for exam, government, job, and application forms. Export as JPG or PNG.
Upload Signature
Signature selected
Image details
Ready in your browser
Signature Tips
Use a clear signature on a white background. Dark blue or black ink works best, and JPG is best for broad form compatibility.
Resize Settings
Resize Method
Dimensions (px)
Common: 600×200, 500×150, 300×100
Recommended: JPG
Upload a signature to begin.
Preview & Download
Your resized signature will appear here
Upload a JPG or PNG signature, set size requirements, then resize locally.
Original
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Resized
Choose settings, then click Resize Signature.
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Success! Your signature has been resized.
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- File Size
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- Dimensions
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- Format
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- Quality
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Private & Secure
Your signature is processed in your browser. We never upload or store your files.
Pixels and KB
Set signature dimensions and a target file size in the same workflow.
JPG or PNG
Choose a white, transparent, or original background before export.
100% Free
Unlimited usage. No sign-up or hidden fees.
Resize a Signature to Common Pixel Sizes
Tap to applyFrequently Asked Questions
What is the best size for an online signature?
Many forms accept 300×100 px, 500×150 px, or 600×200 px. Always follow the exact dimensions and KB limit requested by your form.
Can I resize a signature to 20KB or 50KB?
Yes. Enter 20 or 50 in Target File Size, then set the required pixel dimensions. The result aims for the target and may finish slightly below it.
Can I use this for SSC, UPSC, IBPS, or other application forms?
You can use the custom pixel and KB controls for those forms. Requirements change between notices, so copy the current dimensions and file-size range from the official application instructions.
Which format should I use for signatures?
JPG is usually the safest choice for upload forms because it keeps file size small. Use PNG when you need a transparent background.
Why is my signature file size too large?
High image dimensions, PNG transparency, and high quality settings can increase file size. Try JPG, a smaller target KB, or the Compress More method.
Is my signature image safe and private?
Yes. The tool runs in your browser, so your signature file is not uploaded to our server.