Supported file formats

Microsoft Office & OpenDocument formats

• Portable: PDF
• Word: DOC, DOCM, DOCX, DOT, DOTM, DOTX, RTF
• Excel: XLSX, XLS, XLT, XLTM, XLSB, XLSM
• PowerPoint: PPTX, PPT, PPTM, POTX, POTM, PPSM, PPSX
• OpenDocument: ODT, ODP, ODS

Images & Graphics

• Popular image formats: BMP, JPG, JPEG, PNG
• Multi-page images: GIF, WEBP, TIFF

Other

• Outlook: EML, EMLX, MSG, OFT
• Microsoft Visio: VSDX, VSTX, VSSX, VSDM, VSSM, VSTM, VSD, VDX, VSX, VTX, VSS, VST, VDW

GroupDocs.Watermark for Python via .NET features

• Precise Watermarking Control - Precisely manage watermarks by adding or removing them from specific sections, entire documents, or individual attachments and shapes within different file formats.
• Customize Watermark Appearance - Exert fine-grained control over watermark aesthetics by modifying attributes like color, font, opacity, rotation, and positioning within the document.
• Print PDF Watermarking - Add hidden watermarks into regular documents which become visible only during the printing process, enhancing document security discreetly.
• Specific Image Watermarking - Watermark specific images within a document using this solution. Embed watermarks in a designated section (e.g., page, slide) or across the entire document.
• Multi-Layer Image Watermarks - Add watermarks precisely to specific frames within a multi-frame image format, achieving granular control over watermark placement.
• Comprehensive Content Protection - Extend protection to various document elements like attachments within Excel documents and image shapes within presentations, providing an additional layer of security.
• Advanced PDF Watermarking - Watermark different areas of PDFs, including Bleed Box, Art Box, Crop Box, Trim Box, etc.
• Background Image Watermarking - Manage watermarks within the background images of spreadsheets and presentations, offering additional customization options for visual security measures.
• Text Watermark with Unreadable Characters - Employ unreadable characters within text watermarks embedded in presentations, bolstering security by making unauthorized watermark extraction significantly more challenging.
• Advanced Watermark Search - Use comprehensive search features to locate watermarks in documents based on specific parameters or by combining various criteria.
• Similar Image Watermark Detection - Find similar watermark images within documents that visually resemble a source image.
• Analyze Document Information - Extract essential document data like page setup for further analysis.