Photo & Signature
Signature Resizer to 20KB Online
Crop, resize, and compress your signature to 20KB for online forms and exam applications.
How this tool works
Paste rules
Upload image
Check issues
Fix image
Download
Make a signature file fit a 20KB limit
Use this page when a form accepts a signature only if it stays below about 20KB. It focuses on cropping excess whitespace and compressing a simple signature image while keeping the writing visible.
20KB signature checklist
- Crop close enough to remove blank space but leave the full signature visible.
- Use JPG when a small signature file is more important than transparency.
- Zoom in on the downloaded signature and make sure the stroke is not broken.
- Submit the file only when the final size is within the required 20KB limit.
Fixing progress
Rules
Upload
Check
Fix
Download
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 to approximately 20KB based on common form requirements. Please always check the latest official instructions before submitting.
Frequently Asked Questions
How do I resize my signature to 20KB?+
Upload your signature, crop the area, and click Fix My Image. The tool will automatically compress it to within 20KB.
Why is my signature still larger than 20KB?+
Try cropping a smaller area or using a simpler signature image. Signatures on white backgrounds compress better.
Is my signature uploaded to a server?+
No. Your signature is processed entirely in your browser. No data is sent to any server.