groupdocs/signature repository overview

⁠GroupDocs Document Signature API

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

GroupDocs.Signature Demos are applications that demonstrate powerful features of GroupDocs.Signature for Java⁠ distributed as Docker images. Sign PDF, DOCX, PPT, XLS, and over 90 document formats with text, image, barcode, QR code, stamp, and digital certificate signatures. Use these images as-is or customize and integrate them into your own project.

Note: without a license the application runs in trial mode. Purchase a license⁠ or request a temporary license⁠.

⁠Security Notice

These Docker images ship sample/demo applications — not production-ready services.

• Intended for local development and evaluation only
• Demo defaults enable upload, browse, and download; no authentication is included
• Do not expose port 8080 to untrusted networks without authentication, a reverse proxy, path validation, and other controls required by your organization
• For production, use the GroupDocs.Signature library⁠ and implement your own secure document storage and API layer

Source code: GroupDocs.Signature-for-Java⁠

⁠Supported Document Formats

GroupDocs.Signature for Java supports 90+ document formats including Microsoft Office, PDF, images, OpenDocument, and more. See the full list of supported formats⁠ in the documentation.

⁠Document Signature Demo Features

• Clean, modern and intuitive design
• Responsive design and mobile support
• Digital certificate, image, text, stamp, barcode, and QR code signatures
• Draw signature with finger on mobile devices
• Download, upload, and sign documents
• Sign password-protected documents
• Cross-browser and cross-platform support

⁠Available Docker Images

Six images are published for each GroupDocs.Signature for Java release: three Spring and three Dropwizard variants.

Tag format: {version}-java-{jdk}-bullseye-{framework}

Example: 26.5-java-openjdk8-bullseye-dropwizard — GroupDocs.Signature for Java 26.5, Eclipse Temurin 8, Debian Bullseye, Dropwizard.

The latest tag points to the 26.5-java-openjdk18-bullseye-spring variant when published with the latest workflow option.

⁠How to Run

Pull and run a Dropwizard image:

docker run -p 8080:8080 --name signature --rm groupdocs/signature:26.5-java-openjdk8-bullseye-dropwizard
# Open http://localhost:8080/signature/ in your browser.

Bind volumes for sample files and license:

docker run -p 8080:8080 --name signature --rm \
  -v "C:/DocumentSamples/:/home/groupdocs/app/DocumentSamples" \
  -v "C:/Licenses/:/home/groupdocs/app/Licenses" \
  groupdocs/signature:26.5-java-openjdk8-bullseye-dropwizard

The sample reads license files from the mounted Licenses directory and lists documents from DocumentSamples.

⁠Signature Configuration Options

Environment variables:

⁠See Also

• View documents⁠ with GroupDocs.Viewer
• Compare documents⁠ with GroupDocs.Comparison
• Annotate documents⁠ with GroupDocs.Annotation

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