Polyline Annotation allows to draw shapes and freehand lines
API Usage There are steps that Usage of GroupDocs.Annotation Cloud consists of:
Upload input document into cloud storage and other files, like image Annotation (using File API) Add Annotation(s) Download document with Annotations (using File API) HTTP POST ~/Annotation/add Swagger UI lets you call this REST API directly from the browser.
cURL example Linux/MacOS/Bash # First get JSON Web Token curl -v "https://api....Annotation Product Solution GroupDocs...GroupDocs.Annotation Cloud / Developer Guide / Advanced usage / Adding...