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Error: “Signature must be at least 300px width and 100px height. Your file is 275px × 118px.”
The form wants a signature image that is at least 300 pixels wide and 100 pixels tall. Your file (for example 275×118 px, the SSC/NTA size) is too narrow. Make it bigger, not smaller — 350×150 px keeps the same shape and clears both minimums.
Fix it in 3 steps
- Upload your signature in the tool above (photo, scan or screenshot — JPG, PNG or HEIC).
- Adjust the crop. The tool saves exactly 350×150 px within 10–50 KB.
- Download and upload it to the form again. If your notification gives different numbers, change the size and KB in the tool.
FAQs
What does “Signature must be at least 300px width and 100px height. Your file is 275px × 118px.” mean?
The form wants a signature image that is at least 300 pixels wide and 100 pixels tall. Your file (for example 275×118 px, the SSC/NTA size) is too narrow. Make it bigger, not smaller — 350×150 px keeps the same shape and clears both minimums.
How do I fix it?
Use the tool on this page: it is preset to 350×150 px, 10–50 KB, JPG, which passes this check. Upload your file, adjust the crop and download.
Why does the form still reject my file?
Re-check the exact numbers in your notification (width × height and KB). Portals also reject PNG/HEIC files renamed to .jpg — this tool always saves a real JPG. More upload errors explained.
Other upload errors
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