GroupDocs API References
Class library and REST API reference for GroupDocs document-processing SDKs — namespaces, classes, methods, and code examples for .NET, Java, Node.js, and Python.
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GroupDocs.Conversion
Convert between 170+ document and image formats — PDF, Office, CAD, email, and more.
.NET
Java
Node.js
Python
GroupDocs.Viewer
Render documents and images to HTML, image, or PDF across 170+ formats.
.NET
Java
Node.js
Python
GroupDocs.Comparison
Detect and merge changes in text, style, and formatting across documents.
.NET
Java
Python
GroupDocs.Markdown
Export PDF, Word, Excel, and other formats to clean Markdown.
.NET
Python
GroupDocs.Watermark
Add, find, edit, and remove watermarks in documents, images, and PDFs.
.NET
Java
Python
GroupDocs.Merger
Merge, split, reorder, rotate, and manage pages across document formats.
.NET
Java
Node.js
Python
GroupDocs.Metadata
Read, edit, and remove metadata in documents, images, audio, and video.
.NET
Java
Node.js
Python
GroupDocs.Assembly
Generate documents and reports from templates and data using LINQ syntax.
.NET
Java
Python
GroupDocs.Search
Index and full-text search with fuzzy, synonym, regex, and faceted queries.
.NET
Java
GroupDocs.Parser
Extract text, images, metadata, and structured data from documents.
.NET
Java
Python
GroupDocs.Editor
Load, edit, and save documents through an HTML round-trip.
.NET
Java
Node.js
Python
GroupDocs.Annotation
Add, edit, and remove annotations — comments, highlights, shapes, and stamps.
.NET
Java
Python
GroupDocs.Signature
Sign and verify with digital, barcode, QR-code, text, image, and stamp signatures.
.NET
Java
Node.js
Python
GroupDocs.Redaction
Remove sensitive text, metadata, and annotations from documents.
.NET
Java
Python
GroupDocs.Classification
Classify documents and text with IAB-2, Documents, and Sentiment taxonomies.
.NET
Java
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Machine-readable indexes of the entire API reference, designed for agents and retrieval.
/llms.txt
Curated index of every product and platform.
/llms-full.txt
The full documentation in a single file.
.md
Append
.md to any page URL for Markdown — e.g. /annotation.md
