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🖋️ Stroke Extraction Threshold:
151
💎 Ink Density Enhancement:
2.1px
Signature & Stamp Transparent PNG
Extract Handwritten Signatures into Crisp Transparent PNGs
Extract handwritten ink signatures from paper photos into pure transparent PNGs, ready for signing digital documents. Preserves authentic stroke dynamics for signing PDF contracts and invoices.How to Extract a Signature in 3 Steps
Get your digital signature ready in under 10 seconds.
01
Upload Photo
Take a clear photo of your handwritten signature on paper. Upload the image to Dopic via drag-and-drop or file selection.
02
AI Processing
Our engine automatically detects the ink, removes the paper background, and eliminates shadows or creases instantly.
03
Download PNG
Preview the result. If satisfied, click Download to save your crisp, transparent PNG signature ready for use.
Top Use Cases for Digital Signatures
Streamline your workflow with clean, professional signature assets tailored for Australian business needs.
Instant Contract Signing
Upload a photo of your signed paper contract and extract just the signature. Insert it seamlessly into digital Word docs or PDFs without scanning entire pages.
Corporate Brand Assets
Create consistent, high-quality signature images for company letterheads, email footers, and official correspondence. Maintain brand professionalism across all communications.
E-commerce & Freelance Invoices
Automate invoice approval processes by extracting signatures for quick placement on digital invoices. Perfect for freelancers and small businesses managing client payments.
Real Estate & Lease Agreements
Speed up property transactions by digitizing tenant or landlord signatures. Replace bulky physical filing cabinets with searchable, transparent PNG signature files.
Graphic Design & Mockups
Designers can extract signatures for realistic UI/UX mockups, app interfaces, and marketing materials. Get clean cutouts that blend perfectly with any design layer.
Travel & Visa Documentation
Prepare application forms for visas, permits, or official government submissions. Ensure your signature meets strict clarity requirements without blurry scans.
Why Dopic is the Best Signature Tool
Built for speed, privacy, and precision.
100% Private & Secure
Your images never leave your device. All processing happens locally in your browser using WebAssembly. No server uploads, no data retention.
One-Click Extraction
No manual masking required. Our AI automatically detects the signature strokes and removes the paper background in seconds.
High-Res Alpha PNG
Export crisp, scalable transparent PNGs that retain the original DPI and stroke quality, ensuring they look great when printed or embedded.
Zero Watermarks
Download your extracted signatures completely free of watermarks or branding. Ready for immediate commercial use.
100% FREE
Extract handwritten signatures from photos into transparent PNGs for contracts and documents.
Frequently Asked Questions
Everything you need to know about extracting signatures digitally.
Is my signature data safe?
Yes. Dopic processes all images directly in your browser. Your photos are never uploaded to our servers, ensuring complete privacy and security for your sensitive documents.
Does this work with bad lighting or shadows?
Absolutely. Our AI is trained to handle uneven lighting, desk shadows, and paper textures. It isolates the ink strokes while removing the background noise.
What format will I receive?
You will receive a high-quality PNG file with a transparent background (Alpha channel). This format is compatible with Word, PDF, Photoshop, and most document editors.
Can I use this for legal contracts?
While Dopic helps create clean digital assets, always check local regulations regarding electronic signatures. For most standard business agreements, a clear PNG signature is sufficient.
Do I need to install software?
No. Dopic is a web-based tool that works on any modern browser (Chrome, Safari, Edge) on desktop or mobile. No downloads or plugins required.
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