Spire.DocViewer is a software component that allows developers to embed Word document viewing, conversion, and printing capabilities into their .NET Windows Forms applications. It operates independently of Microsoft Office, supporting various Word formats and offering both pre-built and customizable viewer controls for seamless integration.

Key Features

Word Document Viewing

• Load and display DOC, DOCX, DOTX, and encrypted Word files directly in WinForms apps.
• Supports all Word versions from 97-2003 to 2016 and later.

Conversion Capabilities

• Convert Word documents to PDF, HTML, RTF, images (PNG, JPEG, etc.), XML, SVG, TXT, EPUB, XPS, WordML, and WordXML.
• High-fidelity conversion preserves document layout and formatting.

Printing Support

• Print Word documents with customizable settings such as margins, orientation, and page selection.
• Supports direct printing and print dialogs.

Customizable Viewer Controls

• Built-in DocViewer control with toolbar for quick integration.
• DocDocumentViewer control without toolbar for custom UI development.
• DocumentToolbar control for standalone toolbar functionality.

Display Preferences

• Zoom in/out, fit width/height, single/two-page view, page navigation (up/down, first/last, specific page)1.
• Text search within documents.

Security and Compatibility

• Load and view password-protected (encrypted) Word documents.
• Compatible with .NET 2.0, 4.0, 4.6, 4.8, 6.0, and .NET MAUI (Windows/Android).
• 100% managed code, no dependency on Microsoft Office.

Benefits

Seamless Integration

• Easily add Word viewing and conversion to .NET WinForms apps.
• No need for Microsoft Office installation or interop dependencies.

Flexibility and Customization

• Choose between ready-made or fully customizable viewer controls.
• Tailor toolbar and UI to project requirements.

Broad Format and Version Support

• Works with all major Word formats and versions, including encrypted files.
• Enables conversion to multiple output formats for archiving, sharing, or further processing.

Performance and Stability

• High-performance rendering and conversion.
• Designed for scalability and robust operation in enterprise environments.