Woleet Sign - eSignatures secured by Bitcoin
Signaturely - Super simple eSignature software
MySignature - MySignature is FREE Email Signature Generator that helps to create Professional Signatures for major email clients such as Outlook, Gmail...
HTMLCSS to Image API - Convert HTML to an image (jpg, png, webp). Renders images exactly like Google Chrome. Works with PHP, JavaScript, Ruby, .NET and more.
GetAccept - GetAccept is a Sales tool for electronic signatures and sales document automation.
Authorgraph - Enabling authors to sign e-books for their readers.