GroupDocs.Signature for Python via .NET supports DOCX, DOCM, DOC, DOT, DOTM, ODT, XLS, XLSX, ODS, PDF, PPT, PPTX, JPG, PNG, TIFF and many more formats....Digital FormField Image Metadata QR‑code Stamp Text Bitmap Picture (BMP)...the Supported File Types in Code FileType.get_supported_file_types()...