ONLYOFFICE Docs 9.1 Introduces Powerful PDF Redaction, New Annotations

posted by Rianne Schestowitz on Oct 16, 2025,
updated Oct 17, 2025

Quoting: ONLYOFFICE Docs 9.1 Introduces Powerful PDF Redaction, New Annotations —

ONLYOFFICE Docs 9.1, an open-source and self-hosted office suite for documents, spreadsheets, presentations, fillable forms, PDFs, and diagrams, has officially landed.

The new release packs over a dozen new features, performance improvements, and fixes for more than 500 bugs. The standout change is the much more capable PDF Editor, which now includes a Redact feature to remove sensitive information permanently and an upgraded set of annotation tools for drawing shapes and notes directly on documents.

PDF editing also gets smarter—users can now insert charts and SmartArt graphics, enabling them to create visually rich, data-driven PDFs without leaving the editor. Spreadsheet users aren’t left out either.

Read on

Also:

• ONLYOFFICE 9.1 Released with PDF Redact Tools + More - OMG! Ubuntu

  ONLYOFFICE Desktop Editors includes a word processor, spreadsheet tool, presentation maker, form creator and a PDF viewing and editing app, and is able to work with Microsoft Office file formats like DOCX, XLSX, PPTX.

  Each of those separate components can now handle HEIF images; display charts that use external data sources (embedded file or a source link); and provide colour mode options in the print preview menu — small, welcome improvements.

  For those who work collaboratively, sending and receiving files with others, adding and replying to comments as documents take shape, this update provides controls over how/which comments are shown within the commenting side panel.

UbuntuHandbook:

• OnlyOffice Desktop Editors 9.1 Released with New PDF Editing Tools | UbuntuHandbook

  OnlyOffice Desktop Editor, the free open-source offline use office suite, release new 9.1 version yesterday.

  The new release updated the PDF editing support with new tools, and improved formulas in sheets. It now automatically recover unsaved documents due to app crashes.

  First, in PDF editing mode, it introduced new Redact feature, allowing to hide sensitive or confidential information.

  The Redact tab includes “Mark for Redaction”, “Redact Pages”, and “Find & Redact” options, allowing user to select rectangle area in PDF content, choose PDF pages, or find all matched keywords, then use “Apply Redactions” option to hide them.

It's FOSS:

• ONLYOFFICE Docs 9.1 Arrives with PDF Redaction and Many Editor Upgrades

  ONLYOFFICE is the office suite for people who want Microsoft Office compatibility without the questionable user data handling practices. It supports various document formats while maintaining a strong focus on real-time collaboration.

  Following the major ONLYOFFICE Docs 9.0 release that introduced a redesigned interface and AI-powered features, the developers have now rolled out version 9.1.

  It is the first point release in the 9.x series that focuses on refinement and productivity enhancements.