Document Viewer .NET API

GroupDocs.Viewer for .NET is a powerful Document Viewer API which supports over 160 file formats to view documents in HTML5, Image or PDF modes with fast and high quality rendering. The Viewer Library allows to customize the rendering strategy by processing document page-by-page, entire document at once or a custom pages range. Developers may also customize document appearance via additional rendering options by adding watermarks, rotation and reordering pages, extracting document text with coordinates and much more.

Directory	Description
Docs	Product documentation containing the Developer's Guide, Release Notes and more.
Examples	C# examples and sample files that will help you learn how to use product features.
Showcases	The open source UI that can help integrate GroupDocs.Viewer for .NET API in front end applications.
Plugins	Contains Visual Studio plugins related to GroupDocs.Viewer.

Render & Display Documents via .NET

• View documents by rendering in HTML, image or PDF format.
• Reuse common resources across several HTML pages.
• Make each HTML page self=sufficient by rendering it with embedded resources.
• Render files in the lossless PNG file format or lossy JPG compressed image format.
• Apply page rotation or change page order when rendering a document to HTML or image formats.
• Apply the specified text as watermark to all pages while being rendered into HTML or image.
• Boost document loading speed to optimize application performance via caching.
• Perform document text extract for PNG and JPG formats.
• Fetch basic information about source documents.
• Extract information about PDF document printing restrictions.
• Fetch start and end dates of a project from MS Project file.
• Minify HTML & CSS to improve the rendering process.
• Apply watermark on the output pages of HTML, image or PDF files.
• Render documents with comments, notes, and custom fonts.
• Replace missing fonts while rendering.

Supported Formats for HTML, Image, PDF Rendering

Microsoft Word: DOC, DOCM, DOCX, DOT, DOTM, DOTX
Microsoft Excel: XLS, XLSB, XLSM, XLSX, XLT, XLTX, XLAM
Microsoft PowerPoint: PPT, PPTX, PPTM, PPS, PPSX, PPSM, POT, POTM, POTX
Microsoft Visio: VDW, VDX, VSD, VSDM, VSDX, VSS, VSSM, VSSX, VST, VSTM, VSTX, VSX, VTX
Microsoft Project: MPP, MPT, MPX
Microsoft OneNote: ONE
OpenOffice: ODG, OTG, OXPS, ODP, OTP, ODS, OTS, ODT, OTT, OXPS
AutoCAD: DGN, DWF, DWT, DWG, DXF
CorelDraw: CDR
Adobe Photoshop: PSD
Programming: CS, VB, AS, AS3, ASM, BAT, C, CC, CMAKE, CPP, CSS, CXX, ERB, GROOVY, H, HAML, HH, JAVA, JS, JSON, LESS, LOG, M, MAKE, MD, ML, MM, PHP, PL, PROPERTIES, PY, RB, RST, SASS, SCALA, SCM, SCRIPT, SH, SML, SQL, VIM, YAML
Image: GIF, ICO, JP2, JPF, JPX, JPM, J2C, J2K, JPC, JPG, JPEG, SVG, TIF, TIFF
Markup: HTML, MHT, MHTML, MD
Portable: PDF
Archive: TAR, ZIP, BZ2
Email: EML, EMLX, MSG, OST, PST
Metafile: CGM, EMF, WMF
Other: IFC, STL, PS, XPS, TEX, SXC, DJVU, DNG, DIB, EPS

Develop & Deploy GroupDocs.Viewer for .NET Anywhere

Microsoft Windows: Microsoft Windows Desktop & Server (x86, x64), Windows Azure
macOS: Mac OS X
Linux: Ubuntu, OpenSUSE, CentOS, and others
Development Environments: Microsoft Visual Studio, Xamarin.Android, Xamarin.IOS, Xamarin.Mac, MonoDevelop
Supported Frameworks: .NET Framework 2.0 or higher, Mono Framework 1.2 or higher, .NET Standard 2.0, .NET Core 2.0 & 2.1

Get Started with GroupDocs.Viewer for .NET

Are you ready to give GroupDocs.Viewer for .NET a try? Simply execute Install-Package GroupDocs.Viewer from Package Manager Console in Visual Studio to fetch & reference GroupDocs.Viewer assembly in your project. If you already have GroupDocs.Viewer for .Net and want to upgrade it, please execute Update-Package GroupDocs.Viewer to get the latest version.

Render Layouts of a DWG CAD Drawing as HTML

string outputDirectory = @"C:\output\RenderAllLayouts";
string pageFilePathFormat = Path.Combine(outputDirectory, "page_{0}.html");
using (Viewer viewer = new Viewer("with_layers_and_layouts.dwg"))
{
   HtmlViewOptions options = HtmlViewOptions.ForEmbeddedResources(pageFilePathFormat);
   options.CadOptions.RenderLayouts = true;
   viewer.View(options);
}

Load & View DOCX as PDF while Applying Password to PDF

string outputDirectory = @"C:\output\ProtectPdfDocument";
string filePath = Path.Combine(outputDirectory, "output.pdf");
using (Viewer viewer = new Viewer("sample.docx"))
{
    // set PDF file security
    Security security = new Security();
    security.DocumentOpenPassword = "o123";
    security.PermissionsPassword = "p123";
    security.Permissions = Permissions.AllowAll ^ Permissions.DenyPrinting;

    PdfViewOptions options = new PdfViewOptions(filePath);
    options.Security = security;

    viewer.View(options);
}

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