ProfessionalDigitalSignatures.
Convert handwritten signatures into high-quality transparent PNGs. No uploads, no servers — your data never leaves your device.
TRUSTED BY PROFESSIONALS WORLDWIDE · FREE FOREVER
Why SignPNG
Built for
Professionals.
Instant Conversion
Optimized algorithms process your image in under a second, entirely inside your browser tab.
Zero-Upload Privacy
Your signature never touches a server. Everything runs locally using native Web APIs.
Surgical Clarity
Advanced thresholding eliminates every trace of background noise for a pristine result.
Simple process
Three steps. Done.
Sign on paper
Use a black pen on bright white, unlined paper. Slightly larger than usual works best.
Photograph it
Take a crisp photo in good natural light. Keep the camera parallel to the paper.
Get your PNG
Upload to SignPNG. Adjust the sensitivity slider. Download your transparent signature.
Questions
Common
Questions.
Is it secure for business use?
+What resolution will I get?
+Does it work on mobile?
+Ready?
Your signature.
Perfected.
Join thousands of professionals who trust SignPNG for clean, transparent signature exports.
Create My Signature — Free→