Remove Background from Scanned Signature
Sign a white piece of paper, take a photo with your phone, and upload it to Pixena. The tool automatically removes the paper background, sharpens dark ink strokes, and outputs a transparent PNG ready for PDF contract signing.
Interactive Processing Tool
Process your images directly inside your browser below.
Remove White Background
Choose image or drag and drop here
Supported: JPG, JPEG, PNG, WEBP, BMP • Max file size: 100 MB
How to Capture the Perfect Scanned Signature
1. Use a dark blue or black ballpoint or gel pen on clean, unlined white paper. Avoid textured stationery or ruled notebook lines.
2. Take a photo in bright, even lighting without casting hand or phone shadows across the paper.
3. Upload the photo into Pixena: the luminance threshold keys out off-white shadows, paper texture, and slight lighting gradients while preserving fine ink strokes.
4. Download the transparent PNG and insert it into Adobe Acrobat, Preview, or Microsoft Word as an authentic digital signature stamp.
Frequently Asked Questions
Is my legal signature safe from being stolen or stored?
Yes! Unlike cloud converters, Pixena processes your signature 100% locally in your web browser. No image data or biometric signature bytes are ever transmitted over the network.
What format should I save my signature in?
Save as PNG with transparency. JPG does not support transparent backgrounds and would display an awkward white box over contract lines.
Can this remove paper shadows from phone photos?
Yes, adjust the sensitivity threshold slider to cleanly eliminate paper shadows and background grayness.
Can I change the ink color of my signature?
Yes, you can solidify or change ink color to deep contract blue or crisp black before exporting.
How do I insert this transparent signature into a PDF?
In Adobe Acrobat, click "Sign" > "Add Signature" > "Image", and select your downloaded Pixena transparent PNG file.
Is this tool free for legal and business use?
Yes, Pixena is 100% free with no registration or commercial licensing restrictions.
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