There’s even an option to use the app’s built-in camera to take a photo of your signature on the spot. You can either hand draw your initials with a mouse or stylus or upload a previously taken image from your device. As with any other product from Adobe, this one comes packed with features and functionality.Īdobe Sign offers plenty of ways to personalize your signature. Adobe Sign is one of the most popular e-signature apps in the market, and has been developed by a powerful name in the creative software industry.