— 01
Paper vs ink contrast
Plain paper has very different reflectance than dark ink. Inkurs's model identifies ink vs paper cleanly.
— Remove background from signature
Signature on
Signature on
transparent
Photograph or scan your signature on paper, get back just the strokes on transparent. For contracts, emails, brand work.
— What this does
Inkurs removes paper backgrounds from photographed or scanned signatures and returns transparent PNGs with just the ink strokes. Works on phone photos and flatbed scans.
Drop image or paste from clipboard
PNG · JPG · WEBP · HEIC · BMP — up to 20MB
Tip — paste with ⌘+V from anywhere
01 / Why signature is hard
The signature-specific
edge problems.
— 02
Lined paper noise
Lined notebook paper has horizontal rules that confuse some tools. Inkurs handles them as background.
— 03
Phone-shot lighting
Phone photos have shadows and color casts. Inkurs normalizes paper as 'background' regardless of lighting.
02 / Use cases
Where this gets used.
— 01
Digital contracts
Drop your transparent signature onto a contract PDF. Skip print-sign-scan.
— 02
Email signatures
Add a real signature to your professional email signature block.
— 03
Artist marks
Use as a watermark or signature on artwork prints, portfolio pieces.
— 04
Letterhead and templates
Add a personal touch to brand templates, invoices, formal letters.
— Common questions
FAQ.
What's the best source photo for a signature cutout?
Inkurs handles signature photos shot in most conditions — studio lighting, daylight, indoor, or outdoor. Even, diffuse light produces the cleanest cutout. Avoid harsh shadows across the subject for the best edges.
How does inkurs handle the hardest signature cases?
Inkurs uses high-resolution segmentation tuned on edge cases specific to signature photography. Subject-specific challenges (texture, reflections, fine detail) are handled with the same precision as common cases.
What output format and resolution do I get?
Transparent PNG with proper alpha channel by default, up to 4096×4096 pixels free. WEBP output also available. Both work in any design tool, ecommerce platform, or content management system.
Will it work for commercial use?
Yes — output is yours to use commercially, including for marketplace listings, brand campaigns, client work, or sponsored content. The free tier and Pro both allow commercial use without restrictions.
Can I process multiple images at once?
Single uploads stay free with no daily limit. Batch upload (up to 50 images per request) and API access arrive with Pro at $3/month. Pro waitlist →
How does this compare to using removebg for the same subject?
Inkurs gives full HD output free with no signup; removebg requires a paid account for HD downloads. Inkurs is tuned for design-grade edges and deletes uploads within 60 seconds. Full comparison →
Is inkurs really free with no signup?
Inkurs is free for single-image use with no account, no email, no watermark, and no daily limit. Pro at $3/month adds bulk uploads and API access. The single-image tool stays free, forever.
Do you store or train on my uploaded images?
Inkurs deletes both the uploaded file and the processed output from its servers within 60 seconds of your download. We do not train AI models on user images, share data with advertisers, or retain copies. Privacy policy →