Signature Resizer
Trim, resize and reduce a signature image for online forms.
Drag and drop an image here
or paste from clipboard
Supported: JPG, JPEG, PNG, WEBP · Up to 25 MB
Tip: sign in dark ink on plain white paper and photograph it in good light.
Stays on your deviceInstant processingNo account
How it works
- Upload a photo or scan of your signature.
- Extra blank space around it is cropped automatically (you can turn this off).
- Set optional width and height, and choose a target size in KB.
- Preview it on different backgrounds and download as JPG or PNG.
Privacy
Your image is processed entirely inside your browser using built-in canvas features. It is not uploaded to our server, and it is gone when you close or refresh the page.
Supported formats
JPG, JPEG, PNG and WebP images. HEIC files from some phones aren't supported by most browsers — convert them to JPG first.
Frequently asked questions
What size does my form need?
Requirements differ between forms. Check the exact dimensions and KB limit stated by the organisation you're applying to, then enter them here.
How do I get a clean signature?
Sign in dark ink on plain white paper, photograph it straight on in good light, and keep shadows off the page.
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