GroupDocs.Annotation for .NET
GroupDocs.Annotation for .NET API allows developers to seamlessly enhance their applications with the capability to annotate text or images in a document. Annotation can be applied in form of comments, explanations with highlighted notes, watermark, polyline and much more. Annotator API supports PDF, Microsoft Word DOCX, Excel XLSX and PowerPoint PPTX documents.
How to Annotate – Using GroupDocs.Annotation for .NET API annotations are created and rendered in a separate layer over displayed documents, so that original files are not modified. They can be stored as a set of JSON files or in a DB, as well as merged with the original file and exported to PDF or Word document.