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GroupDocs.Viewer 26.4.0

Document Viewer .NET API

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GroupDocs.Viewer is a class-library that enables you to build file viewer applications for mobile, web, and desktop platforms using C#, F#, or VB.NET. It supports rendering over 170 popular file formats in HTML, PNG, JPEG, and PDF. Our library is self-sufficient and doesn't depend on any third-party software, such as Microsoft Word, OpenOffice, and other office suites.

Features

• Render documents to HTML, PNG, JPEG, or PDF formats.
• Retrieve basic details about documents, such as page count.
• Render HTML with embedded or external resources.
• Add text watermarks to documents.
• Add UI to your ASP.NET Core application with GroupDocs.Viewer.UI package.

See the Features overview documentation topic for more details.

Supported platforms

• Windows: Microsoft Windows XP and later, Microsoft Windows Server 2003 and later.
• Linux: Ubuntu, OpenSUSE, CentOS and others.
• Mac OS X Catalina (10.15) and later.

If you build applications for Linux and macOS, we recommend using GroupDocs.Viewer.CrossPlatform package instead of this one. GroupDocs.Viewer.CrossPlatform does not use on System.Drawing.Common as a graphical subsystem, which is only supported on Windows.

See the System requirements documentation topic for more details.

Supported formats

• Word: DOCX, DOC, ODT, RTF, TXT.
• PowerPoint: PPTX, PPT, ODP.
• Excel: XLSX, XLS, ODS, Numbers, CSV.
• Fixed Page Layout: PDF, XPS.
• Graphics: CDR, DCM, AI, PSD.
• Email: MSG, EML, VCF.
• Diagrams: VSDX, VSD.
• Web: HTML, MHTML, CHM, JSON, XML.
• Other file formats: E-books, archives, Project

See the Supported file formats documentation topic for a complete list of supported formats.

Getting Started

To get started with GroupDocs.Viewer first you have to install the package using the command for your tool that you can find at the beginning of this page.

You can run the following code snippets in C# to see how our library works. Also feel free to check out the GitHub Repository for other common use cases.

Render PDF to HTML

using GroupDocs.Viewer;
using GroupDocs.Viewer.Options;

// Instantiate viewer
using (var viewer = new Viewer("resume.pdf"))
{
 // Set output HTML options, one file per page
 var viewOptions = HtmlViewOptions.ForEmbeddedResources("page{0}.html");
 
 // Render PDF to HTML with embedded resources 
 viewer.View(viewOptions);
}

Render PPTX to PDF

using GroupDocs.Viewer;
using GroupDocs.Viewer.Options;

// Instantiate viewer
using (var viewer = new Viewer("solution.pptx"))
{
 // Set output PDF options 
 var viewOptions = new PdfViewOptions("solution.pdf");
 
 // Render PPTX to PDF 
 viewer.View(viewOptions);
}

Render DOCX to PNG

using GroupDocs.Viewer;
using GroupDocs.Viewer.Options;

// Instantiate viewer
using (var viewer = new Viewer("flyer.docx"))
{
 // Set output PDF options 
 var viewOptions = new PngViewOptions("page{0}.png");
 
 // Render DOCX to PNG 
 viewer.View(viewOptions);
}

Support

Our technical support is available to all users, including those evaluating our product. We offer assistance through our Free Support Forum and Paid Support Helpdesk. Let us know if you have any questions or issues, and we'll do our best to help you.

Product Page | Docs | Demos | API Reference | Examples | Blog | Releases | Free Support | Temporary License