GroupDocs.Annotation for Python via .NET 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, DOCX, XLSX, PPTX, Images, CAD, Visio, and Email files, entirely on-premise without Microsoft Office....Excel, PowerPoint, images, CAD, Visio, and email formats — through...e-learning feedback — mark up images and scanned pages with points...