Area annotation allows to mark up an area within the document page with a rectangle.
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...."Annotations": [ { "Type": "Area", "Text": "This is area annotation"...'Annotations': [ { 'Type': 'Area', 'Text': 'This is area annotation'...