GroupDocs.Editor for Java - Examples and Demo Projects

GroupDocs.Editor for Java is a document editing API that lets you load documents, edit them as HTML, and save back to the original or other supported formats including Microsoft Word, Excel, PowerPoint, PDF, and plain text.

Important: Demo Applications Only

The projects in the Demos folder and the Docker images published as groupdocs/editor are sample applications intended to demonstrate GroupDocs.Editor for Java features.

They are not production-ready services and must not be exposed to the public internet without additional hardening.

Before using a demo in any shared or production-like environment:

• Run it on localhost or a trusted private network only
• Do not publish Docker containers directly to the internet without authentication, a reverse proxy, and network restrictions
• Treat file upload, browse, and download features as untrusted input — validate and sandbox file paths in your own integration
• Add authentication, authorization, rate limiting, and logging appropriate for your security requirements
• Keep GroupDocs.Editor and all dependencies up to date

For production integrations, use the library (Examples, documentation) and implement your own secure document storage and API layer instead of deploying these demos as-is.

Repository Structure

Directory	Description
Demos	Demo projects for Spring and Dropwizard with WYSIWYG web UI.
Examples	Java API usage examples with sample documents.

Demos

Both web demos run on http://localhost:8080/editor/ and provide document editing with download, upload, and print support.

Demo	Framework	Build	GroupDocs.Editor
Spring	Spring Boot 2.0	mvn clean spring-boot:run	26.1
Dropwizard	Dropwizard 1.3	mvn clean compile exec:java	26.1

Docker

Pre-built Docker images are available on Docker Hub.

docker pull groupdocs/editor:latest
docker run -p 8080:8080 groupdocs/editor:latest

Security notice: Docker images ship with demo defaults (e.g. upload and browse enabled, no authentication). Use them for local evaluation only. Do not expose port 8080 to untrusted networks without adding authentication, path validation, and other security controls required by your organization.

Available image tags follow the pattern {version}-java-{jdk}-bullseye-{framework}:

Tag	JDK	Framework
{ver}-java-openjdk8-bullseye-spring	Eclipse Temurin 8	Spring
{ver}-java-openjdk11-bullseye-spring	Eclipse Temurin 11	Spring
{ver}-java-openjdk18-bullseye-spring	Eclipse Temurin 21	Spring
{ver}-java-openjdk8-bullseye-dropwizard	Eclipse Temurin 8	Dropwizard
{ver}-java-openjdk11-bullseye-dropwizard	Eclipse Temurin 11	Dropwizard
{ver}-java-openjdk18-bullseye-dropwizard	Eclipse Temurin 21	Dropwizard

The latest tag points to the openjdk18-bullseye-spring variant.

The Docker Hub repository overview is generated from docs/docker-hub-overview.md when the Publish Docker Images workflow runs with Push enabled.

Document Editing as HTML

• Convert documents to HTML DOM.
• Convert HTML DOM to Office & OpenOffice formats.
• Protect resultant documents.
• Paginal mode for Word documents.
• Open, view and edit XML documents.

Getting Started

GroupDocs.Editor for Java requires J2SE 8.0 (1.8) or above.

Add the GroupDocs repository to your Maven project:

<repository>
    <id>GroupDocs Artifact Repository</id>
    <url>https://releases.groupdocs.com/java/repo/</url>
</repository>

Then add the dependency:

<dependency>
    <groupId>com.groupdocs</groupId>
    <artifactId>groupdocs-editor</artifactId>
    <version>26.1</version>
</dependency>

See the installation guide for details.

Code Example

try (Editor editor = new Editor("sample.docx")) {
    EditableDocument doc = editor.edit();
    String html = doc.getEmbeddedHtml();
    // modify html...
    EditableDocument edited = EditableDocument.fromMarkup(html, null);
    editor.save(edited, "output.docx");
}

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