A flexible Java library for HTML5-based annotation of 50+ types of documents and images. Supported file formats include: PDF and Microsoft Word documents, Excel spreadsheets, PowerPoint slides, Visio, CAD, raster images and other common document types.
Key features include:
1. Platform independent. GroupDocs.Annotation for Java works across all popular platforms, including iPad, iPhone, Android, Mac and PC. All a user needs to annotate a document is an HTML5-compliant browser.
2. High fidelity true-text rendering. The library renders documents as text files, so that users can search for, select and copy text right from documents displayed within your app or website.
3. A wide set of annotation tools:
- Sticky notes with rich text
- Point annotations (allows adding notes to any point in the document)
- Area annotations (allows commenting on an area marked up with a rectangle)
- Text annotations (allows striking through/underlining and commenting on text)
- Text replacement (allows editing text)
- Text/area redaction (allows blacking out text/area)
- Polyline (allows drawing freehand lines)
- Arrows
- Watermarks
- Undo/redo
4. A customizable UI. GroupDocs.Annotation for Java has a convenient web UI, designed to make it easy to annotate large documents in a browser. It allows end users to:
- Turn document pages with the click of a button
- Jump straight to a selected page
- Preview pages with thumbnails
- Quickly navigate between annotations
- Print and export annotated documents to PDF
- Collaborate on documents in real time.
5. Support for native PDF annotations. Annotations made in GroupDocs can be converted to/from native PDF annotations for further editing.
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