Below are the basic annotations which are supported by GroupDocs.Annotation for .NET.
With the help of area annotation one can mark up an area with a rectangle in the document. Moreover user can add notes to it (area annotation).
Using point annotation user can stick comments at any point in the document.
User can comment on the selected text.
Strikeout or underline annotations can be applied on a paragraph in a document.
User can draw shapes and freehand lines in the document.
Arrows with the notes can be added in the document.
|User can draw a line that represents distance between two objects or anything to add a annotation.|
|Watermark/Textstamp can be added in the document.|
GroupDocs.Annotation provides abstract storage, user can use abstract storage by using implemented interface provided by GroupDocs.Annotation API.