GROUPDOCS .Viewer

          GroupDocs.Viewer · Product Family
        

Render documents anywhere

Render 170+ formats to HTML, image, or PDF with high-quality output, caching, watermarks, and cloud sources — across every platform.

Live demo Get started

170+

formats

platforms

MIT

examples

document.docx · GroupDocs.Viewer

Install in seconds

Pick your platform, copy the package command, and ship your first integration.

.NET v26.4.0

dotnet add package GroupDocs.Viewer

2.9M downloads

Java v26.5.0

implementation 'com.groupdocs:groupdocs-viewer:26.5.0'

Node.js v26.5.0

npm install @groupdocs/groupdocs.viewer

Python v26.5.0

pip install groupdocs-viewer-net

Quick start — .NET

using GroupDocs.Viewer;

using var viewer = new Viewer("document.docx");
viewer.View(new HtmlViewOptions());

What you can build

GroupDocs.Viewer in production — fast, flexible, and source-agnostic.

Render anywhere

Output to HTML, image (PNG/JPG), or PDF with pixel-accurate rendering.

Cloud-ready

View from Amazon S3, Azure, FTP, a stream, or any URL.

Fast with caching

Cache rendered pages so repeat views load instantly.

Watermarks

Stamp text or image watermarks onto rendered output.

Supported formats

A representative slice of the formats GroupDocs.Viewer works with.

Documents

PDF DOCX DOC RTF ODT TXT

Spreadsheets

XLSX XLS CSV ODS

Presentations

PPTX PPT ODP

Images

PNG JPG TIFF BMP

CAD & Email

DWG DXF MSG EML VSDX

Free · ads-free · no install

Try it live in your browser

Run GroupDocs.Viewer on your own files in the free, ads-free Viewer web app — no install required. Files are deleted after 24 hours.

Open the Viewer app

Open-source examples

View all repositories →

GroupDocs.Viewer-for-.NET

C#52

GroupDocs.Viewer-for-Java

Shell31

GroupDocs.Viewer-for-Java-Spring

Java16

GroupDocs.Viewer-for-.NET-MVC

C#14

GroupDocs.Viewer-for-Java-Dropwizard

Java13

GroupDocs.Viewer-for-.NET-WebForms

C#12