Official upload constraints
Signature uploads often fail because the file has too much blank space, wrong dimensions, low contrast, or a size just above the portal limit. The signature workflow focuses on those practical checks.
Signature resizer
Resize signatures for forms, exams, banking, and applications.
Prepare a clean digital signature by trimming whitespace, setting fixed dimensions, choosing the background color, and compressing the output under common upload limits such as 20 KB or 50 KB.
Auto-trim or manual crop
Use the signature preset to auto-trim white margins, or switch the signature crop mode to selected crop when you need manual control.
20 KB and 50 KB targets
Use Max size mode to enter the portal limit. The processor adjusts quality and dimensions to keep the output close to the required size while preserving readability.
Common questions
Can I resize a signature to 140x60 pixels?
Yes. Use the Signature preset button to create a 140x60 output.
Can I compress a signature below 20 KB or 50 KB?
Yes. Choose Max size mode, enter 20 or 50, then process the signature.
Can I change the signature background color?
Yes. Choose the background color before running the signature preset.