Compress a Signature to Any KB Size
Enter the maximum file size required by your form and compress the signature without changing its natural shape. Exact dimensions and format remain optional.
Compression without unnecessary controls
- Starts with one clear maximum-KB field.
- Adds a minimum only when the form provides a range.
- Keeps dimensions, format and DPI under More options.
How to create the correct file
- 1. Upload a clear signature image.
- 2. Enter the maximum file size required by the form.
- 3. Crop excessive blank paper when it makes the signature look small.
- 4. Add optional dimensions, minimum size or format only when specified.
- 5. Compress and verify the final file.
Common reasons for rejection
- Entering a minimum when the form only states a maximum.
- Trying to compress a full-page photo without cropping.
- Forcing dimensions unrelated to the application.
- Using aggressive compression without checking thin strokes.
Common questions
Can I enter any KB limit?
Yes, but extremely small targets may not be possible without visible quality loss.
What is the difference between maximum and exact KB?
Most portals accept any file at or below a maximum. An exact byte value is rarely required.
Can I keep the original dimensions?
Yes. Width and height stay unchanged unless you set new values under More options.
Already have a signature file?
Check its exact KB, pixel dimensions, format and aspect ratio before uploading it to the form.
Open Signature Size Checker