How to use it
Add your signature
Photograph or scan your signature on plain white paper, then add the picture here.
Set the size and the limit
Enter the width and height in pixels from the form, then pick 10 KB or 20 KB in the Preset list.
Resize and download
Press Resize images. Check the result: the signature should look dark and the edges clean.
How small can a signature file be?
A signature is mostly white paper, so it compresses much better than a photo. Typical forms ask for 10 to 20 KB and a picture only a few hundred pixels wide. The tool reaches these limits easily, and the strokes stay readable.
When a limit is very small, such as 10 KB, a thick pen helps: thin pen lines can fade when the picture is made small.
Tips for a clear signature
- Sign with a dark blue or black pen on plain white paper.
- Take the photo in daylight without shadows, and crop close to the signature.
- If the form needs an exact width and height, crop the picture to that shape first so the signature is not stretched.
- Save as JPG unless the form allows PNG.
Frequently asked questions
What size should a signature be for an online form?
It depends on the form. Many ask for about 10 to 20 KB and a small width and height in pixels. Always follow the exact numbers in the official notice.
How do I make my signature 10 KB?
Add the signature, choose the 10 KB limit in the Preset list and press Resize images.
Can I remove the paper background?
This tool resizes and compresses; it does not remove backgrounds. Use plain white paper so the result looks clean.
Is it safe to use my signature here?
Nothing is uploaded. The signature is processed inside your browser and stays on your device.