Signature Resizer
Crop and resize your signature to the common 140×60 pixel size used by many exam and application forms. No upload, 100% private.
Drop your photo here
or click to browse files
Supports JPG, PNG, WebP
100% Private
All processing in your browser
Exact Specs
11.85×5.08mm official size
Mobile Ready
Works on any device
Completely Free
No limits, no payment
Online forms — bank KYC processes, exam applications, government portals — frequently ask for a scanned signature under a strict file size limit, typically 10-20KB, uploaded at a small fixed pixel size. A signature photographed on a phone is usually many times too large in both dimensions and file size, and needs cropping plus compression before it will pass an upload check.
This tool crops your signature image tightly to the required frame and compresses it down toward the target file size, so what you upload matches what the form actually expects rather than triggering a vague 'file too large' or 'invalid dimensions' error.
Getting a clean signature scan starts before you even open this tool: the ink color, paper background, and lighting when the signature was captured all affect how well it compresses while staying legible.
Digital signature uploads are typically compared visually against a reference signature on file (like a bank's specimen signature) rather than processed with sophisticated verification software, which is why legibility after compression matters more than technical resolution — a heavily compressed but still clearly legible signature serves its purpose better than a technically higher-resolution one that's become blurry or distorted.
It's worth keeping a consistent, clean master copy of your signature scan that you reuse across different forms, rather than re-photographing your signature freshly for every single application — this keeps your signature looking consistent across the various documents and accounts where it appears.
It's worth practicing your signature a few times on paper before the final scan if it's been a while since you signed anything by hand, since a natural, consistent signature tends to compress and remain legible more predictably than a hesitant, first-attempt one with uneven pen pressure or shaky strokes.
Step-by-step instructions
- 1
Photograph or scan your signature
Sign in dark ink on plain white paper and capture it in good lighting.
- 2
Upload the image
Select or drag the photo of your signature into the tool.
- 3
Crop tightly around the signature
Remove excess white space so the signature fills the frame.
- 4
Download the resized file
Save the compressed, correctly sized signature for your form.
Common use cases
Bank KYC and account opening
Upload a correctly sized signature for online bank account or KYC verification forms.
Exam and government applications
Meet the strict small file size requirements common in competitive exam application portals.
Document e-signing preparation
Prepare a clean signature image for pasting into digital documents or contracts.
Re-uploading after a rejected submission
Fix a signature that was previously rejected for being too large or the wrong dimensions.
Setting up recurring digital form submissions
Prepare a correctly sized signature file once to reuse across multiple recurring forms or applications that request the same format.
Tips for best results
- Sign with black or dark blue ink on plain white paper for the cleanest contrast after compression.
- Photograph the signature in even lighting to avoid shadows that reduce legibility once compressed.
- Crop as tightly as possible around just the signature to maximize how much detail survives compression at a small file size.
- If your form's limit is unusually small, try a slightly bolder pen to keep the signature legible after heavy compression.
- Keep one consistent, clean master signature scan that you reuse and resize for different forms, rather than re-photographing fresh each time.
- Prioritize legibility over technical resolution — a clear, readable signature at a smaller file size serves better than a technically sharper one that's hard to read after compression.
Frequently asked questions
What ink color works best for scanning?
Black or dark blue ink on plain white paper gives the cleanest contrast, which helps the signature stay legible after compression.
Why does my form reject the signature file?
Most rejections happen because the file exceeds the maximum size limit or doesn't match the required pixel dimensions — cropping tightly and downloading here usually resolves both.
Can I use a stylus-drawn signature instead of a scanned one?
Yes, a digitally drawn signature works the same way — upload the image and crop and resize it just like a scanned one.
Is there a standard signature size across all forms?
No, requirements vary by form; always check the specific size and KB limit stated in your application's instructions.
Should my signature look identical across every form I submit?
Keeping a consistent signature scan across forms and accounts is generally good practice, since some institutions compare submitted signatures against a specimen on file.
Is a scanned signature legally equivalent to a wet-ink one?
This varies by jurisdiction and specific document type; for anything legally significant, check whether a scanned or digital signature is accepted for that particular use case.
Does signature quality on paper affect how well it compresses?
Yes — a natural, consistently-pressured signature tends to remain legible more predictably after compression than a hesitant or shaky one, so practicing a couple of times before the final scan can help.