Major Features GroupDocs.Signature Cloud is a REST API to create, verify and search different type of Signatures objects to documents in the cloud by performing a wide variety of signature options you can wish to put on a document in the cloud, verify document and search Signatures in it. Summary there are five types of supported Signature type you can operate with.
Text Signature - simple text label with different Appearances settings and ability to align signature location on page area, set font and colors, same as put on any or all pages of document Image Signature - image signature with amount of filters and Appearances settings, like Opacity, gray scale filter, brightness, contracts etc Barcode Signature - put different Barcode encode types on Document pages with lot of additional settings, Appearances options and alignment properties QR-Code Signature - put different QR-Code encode types on Document pages with lot of additional settings, Appearances options and alignment properties Digital Signature - put digital signatures like certificate files (PFX, CRT format) on Document or separate pages (for PDF only) with lot of additional settings, Appearances options and alignment properties Stamp Signature (not yet implemented in Cloud version) - put Stamp generated images on Document pages Our GroupDocs....text label with different appearances settings and ability to align...with amount of filters and appearances settings, like Opacity, gray...