Upload Fix
Fix Signature Upload Error Online
Fix signature upload errors for online forms and exam applications. Resize and compress your signature to meet exact pixel and KB requirements.
How this tool works
Paste rules
Upload image
Check issues
Fix image
Download
Fix rejected signature uploads
Signature uploads are often rejected because the signature image is too wide, too tall, too heavy, or includes too much blank space around the ink. This tool focuses on making a signature image fit common form and exam upload rules after a failed attempt.
Signature rejection checklist
- Check the target width, height, and KB range shown by the form.
- Use JPG output unless the form specifically asks for PNG.
- Make sure the signature stroke is visible and not cropped too tightly.
- Replace the rejected file with the newly downloaded signature image.
Fixing progress
Rules
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Check
Fix
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Upload Your Image
Drag & drop your image here, or click to choose a file.
JPG, PNG, and WebP are supported. HEIC/HEIF is not supported by most browsers.
Your images are processed entirely in your browser. No data is uploaded to any server.
This tool resizes your signature based on common upload requirements. Please always check the latest official instructions before submitting.
Frequently Asked Questions
Why does my signature keep getting rejected?+
Signatures are usually rejected because the file size exceeds the limit (often 20KB), the dimensions are wrong, or the aspect ratio doesn't match. Our tool helps you fix all of these issues.
What aspect ratio should my signature be?+
Many forms require a signature aspect ratio of around 3:1 (width:height). Common pixel sizes include 236x79. Our tool sets the crop area to match typical requirements.
Is my signature uploaded to a server?+
No. Your signature is processed entirely in your browser. No data is sent to any server.
Can I use this on my phone?+
Yes. This tool works on mobile browsers. You can upload your signature, crop it, resize it, and download the result.