GroupDocs.Annotation for Python via .NET adds annotations, markup, and review comments to documents and images through a single, format-independent API — text markup, shapes, watermarks, image and link stamps, text fields, threaded replies, versions, and import/export — and saves the result back to the original format....annotating it — read the page count, file type, page dimensions, and size...with FileType.get_supported_file_types() . See Get Document Info...