Annotate PDFs with Precision and Flexibility

October 23, 2025
ONLYOFFICE Docs v9.1 adds PDF editing tools with smarter redaction, annotation, and visualization options for enhanced presentation.

ONLYOFFICE Docs is a comprehensive online editor, allowing users to create text documents, spreadsheets, presentations, and forms. It enables your users to edit, share, and collaborate on documents online in their preferred browser, within your own application. It is fully compatible with OOXML (Office Open XML) formats and supports popular Microsoft Office and other document formats such as CSV, DOC, DOCX, EPUB, HTML, ODP, ODS, ODT, PDF, PPT, PPTX, RTF, TXT, XLS, and XLSX.

The ONLYOFFICE Docs v9.1 update enhances the PDF Editor to provide a more efficient and secure document management experience for developers and teams. It introduces advanced redaction tools that allow precise removal of sensitive information, including the ability to find and redact specific terms or entire pages. The update also expands annotation capabilities with customizable shapes and drawing tools for clearer document markup. Additionally, developers can now embed charts and SmartArt graphics directly within PDFs, enabling better visualization of data and smoother integration of visual elements without leaving the editing environment.

To see a full list of what's new in v9.1.0, see our release notes.

ONLYOFFICE Docs Developer Edition is licensed by the number of simultaneous document connections and is available as an annual license with 1 year support and upgrades. See our ONLYOFFICE Docs Developer Edition licensing page for full details.

For more information, see our ONLYOFFICE Docs Developer Edition product page.