Sign Photo
Stamp or sign any photo or document.
Drop your photo or document here
Supports JPG, PNG, and WebP format
How to sign a photo or document online
- Upload your photo or document. Drag and drop any JPG, PNG, or WebP photo, identity card, or scanned form into the workspace. Your image displays instantly with full resolution in your browser.
- Create or upload your signature. Draw your signature using the smooth digital pen pad, type your name using elegant cursive script fonts, or upload an existing signature image with an optional white-paper background remover.
- Position, resize, and download. Drag your signature anywhere on the image, adjust its scale and angle to fit form guidelines or signature boxes, and click Download to save the signed image in high resolution.
Technical specifications & privacy
Signature rendering and composite processing operate 100% on-device in client-side HTML5 Canvas memory. Pen strokes use quadratic bezier smoothing with sub-pixel interpolation for natural handwriting curves. White background removal automatically calculates luminance thresholds and alpha transparencies in real time. The final signed image is rendered at the full native resolution of your original photo without downsampling or cloud uploads.
Common questions
Can I remove the white paper background from an uploaded signature?
Yes. Toggle the "Remove white paper background" switch, and the tool will automatically convert the white paper into transparent pixels so only your clean ink signature appears over the image.
Is my signature kept private and secure?
Completely. All drawing, font rendering, and image compositing happen solely within your browser session in RAM. No signatures, photos, or documents are ever uploaded to a server or stored.
Can I change the ink color of my signature?
Yes. You can switch between classic black, official government navy blue, royal blue, or red ink with one click for both drawn and typed signatures.
Will adding a signature reduce the quality of my photo or document?
No. The output image retains the exact width, height, and pixel clarity of your original file, ensuring signatures remain crisp on official exam applications, job forms, and certificates.