Document Viewer .NET API

Nuget

This robust .NET on-premise file viewer API supports rendering of 130+ format types in HTML, image & PDF formats. 90+ formats are supported for auto-detection.

Document Viewer Processing Features

View documents by rendering in an 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 a 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 a list of folders contained in an archive.
Fetch a list of layers and layouts from a CAD drawing.
Get a list of folders contained in an Outlook data file.
Extract information about PDF document printing restrictions.
Fetch the start and end dates of a project from the MS Project file.
Minify HTML & CSS to improve the rendering process.
Render to responsive HTML.
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.

HTML, Image, PDF Rendering Supported Formats

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, PSB
IBM Notes: NSF 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, RAR, GZ
Email: EML, EMLX, MSG, OST, PST
Metafile: CGM, EMF, WMF, WMZ, EMZ, CMX
Other: IFC, STL, PS, XPS, TEX, SXC, DJVU, DNG, DIB, EPS

Supported Formats for Auto Detection

Microsoft Word: DOC, DOCM, DOCX, DOT, DOTM, DOTX
Microsoft Excel: XLS, XLSB, XLSM, XLSX, 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, PSB
Programming: CS, VB
Image: GIF, ICO, JP2, JPF, JPX, JPM, J2C, J2K, JPC, JPG, JPEG, SVG, TIF, TIFF
Markup: HTML, 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

Platform Independence

GroupDocs.Viewer for .NET does not require any external software or third-party tool to be installed. GroupDocs.Viewer for .NET supports any 32-bit or 64-bit operating system where .NET or Mono framework is installed. The other details are as follows:

Microsoft Windows: Microsoft Windows Desktop (x86, x64) (XP & up), Microsoft Windows Server (x86, x64) (2000 & up), Windows Azure
Mac OS: Mac OS X
Linux: Linux (Ubuntu, OpenSUSE, CentOS and others)
Development Environments: Microsoft Visual Studio (2010 & up), Xamarin.Android, Xamarin.IOS, Xamarin.Mac, MonoDevelop 2.4 and later.
Supported Frameworks: GroupDocs.Conversion for .NET supports .NET and Mono frameworks.

Get Started

Are you ready to give GroupDocs.Viewer for .NET a try? Simply execute Install-Package GroupDocs.Viewer from the 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.

Please check the GitHub Repository for other common usage scenarios.

Use C# Code to Render All Layouts of a DWG CAD Drawing

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);
}

Apply Password to PDF File via C# Code

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);
}