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....draw shapes and freehand lines API usage There are steps that usage...and other files, like image annotation (using File API) Add annotation(s)...