.NET library that adds, edits, and removes annotations and markup — area and shape annotations, text highlight/underline/strikeout, watermarks, Image and link stamps, and threaded comments — on PDF, Word, Excel, PowerPoint, Images, CAD, Visio, and Email files. No Microsoft Office or Adobe Acrobat required....squiggly lines, stamp watermarks, images, and hyperlinks, add editable...Annotations : Stamp watermarks, image annotations, hyperlinks, and...