HelloSign takes paper out of the equation. You'll never need to print, sign and scan documents again! Simply open your file, add a signature (or text, date, checkmark, etc.) and let HelloSign do the rest. Itâs legally-binding and takes less than a minute. Add HelloSign to your domain and youâll be on your way to a paperless office. HelloSign has three primary features: 1) Sign and send documents Choose any file in Google Drive or from your Gmail and add your signature (or text, date, checkmark, etc.) Itâs that simple. You can sign and send any type of document (PDF, Word, Excel, etc.). 2) Get others to sign documents (NDAs, sales contracts) fast Need a vendor to sign an invoice? Need a new employee to complete a 1099? Simply upload the document they need to sign, assign the signature field and send off your request. 3) Templates and forms Templates and forms make it easy to setup your most commonly signed documents. Create a template for easy completion and even create a unique, reusable link for forms that can be hosted on your site or sent via email.