Expand Document Handling in Your Python Apps
Product UpdateDocument & Image Tools
GroupDocs adds new products for Python developers, with dedicated APIs for comparing, merging, watermarking, and managing metadata.
GroupDocs.Watermark
API for adding and managing watermarks in documents.
- Supports over 50 popular document and image file formats.
- Customize text and image watermark properties extensively.
- Search, update, and remove existing watermarks programmatically.
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Need help choosing? See How to Buy
GroupDocs.Watermark is a versatile developer library designed to add, search, and manipulate watermarks in a wide range of document and image formats. It supports text and image watermarks with customizable features for font, color, alignment, and image effects, making it suitable for securing and branding business files in .NET, Java, Node.js, and Python applications.
Multi-Format Watermarking Support
Apply watermarks to many document and image formats including PDF, Word, Excel, PowerPoint, OpenDocument files, Visio diagrams, emails, and raster images.
Extensive Watermark Customization
Configure watermark properties such as font, color, transparency, rotation, alignment, and size to control the visual appearance and placement of watermarks.
Text and Image Watermarks
Add text-based or image-based watermarks to documents and images. Image watermarks support additional visual adjustments including brightness, contrast, and transparency settings.
Watermark Search and Management
Locate existing watermarks within documents using search criteria and modify or remove them programmatically to manage watermark content.
Background and Shape Watermarking
Insert watermarks into document backgrounds or shapes within spreadsheets and presentations to ensure consistent visibility across document layouts.
PDF Watermarking Capabilities
Use PDF-specific watermark placement options such as alignment to crop, bleed, trim, or media boxes and apply hidden watermarks that appear only during printing.
Image Watermark Effects
Enhance watermark appearance using image effects such as brightness adjustments, contrast modifications, chroma key transparency, and border styling.
Watermark Processing Automation
Programmatically apply watermark operations across batches of documents to support automated document branding and protection workflows.
Product Compatibility
Review the details below to ensure this product is supported within your environment.
Component Type
- .NET
- Java
- JavaScript
.NET Version
- .NET 10 LTS
- .NET 9 STS
- .NET 8 LTS
- .NET 7 STS
- .NET 6 LTS
- .NET 5 / .NET Core 3.1
- .NET 4.8 or earlier
.NET Platform
- .NET Assembly
- .NET Class
- .NET Core 3.1 Assembly
JavaScript Platform
- Node.js
- Vanilla JavaScript
Java Platform
- Java Class
IDE Support
- Visual Studio
How to Buy
Choose the platform you need.
Watermark Documents in Your Node.js App
Product UpdateDocument & Image Tools
GroupDocs.Watermark for Node.js via Java empowers applications to manage watermarks in PDFs, Microsoft Office documents, and images.
About GroupDocs
GroupDocs, established as a global brand in document automation, specializes in offering a wide array of document processing APIs from its headquarters in Lane Cove, Australia. It provides developers and IT teams with libraries for display, annotation, conversion, metadata management, comparison, redaction, and more, suitable for integration in .NET, Java, Python, and Node.js environments. GroupDocs supports operations with over 200 file formats, helping professionals build feature-rich solutions without third-party dependencies. With adoption by recognized enterprises worldwide and extensive documentation, it stands out for its cross-platform support, cost-effectiveness, and unified approach to document management and automation.
As official and authorized distributors since 2006, ComponentSource supplies you with legitimate licenses directly from GroupDocs.