LibreOffice Impress

LibreOffice Impress
Name	LibreOffice Impress
Developer	The Document Foundation
Released	2011
Latest release	(varies)
Operating system	Linux, Windows, macOS
License	Mozilla Public License v2.0

LibreOffice Impress LibreOffice Impress is a presentation program within the LibreOffice suite created and maintained by The Document Foundation, designed to produce slideshows, multimedia presentations, and visual reports comparable to offerings from other major office suites. It integrates with the broader LibreOffice ecosystem and is distributed under the Mozilla Public License v2.0, enabling collaboration among contributors affiliated with projects such as Debian, Red Hat, SUSE, Ubuntu, and Fedora. Impress is used in contexts ranging from academic conferences like SIGGRAPH and IEEE symposiums to civic institutions such as the European Parliament and municipal governments.

Overview

Impress provides tools for slide creation, slide transitions, animations, and presenter view, and is often compared with Microsoft PowerPoint, Apple Keynote, Google Slides, Apache OpenOffice Impress, and WPS Office Presentation. The application is part of the LibreOffice suite alongside Writer (software), Calc (spreadsheet), Base (database), Draw (software), and Math (software), and interoperates with office suites used by corporations like IBM, Oracle Corporation, SAP SE, and Intel Corporation. Impress supports multimedia embedding and external resources from projects such as VLC media player, GStreamer, and FFmpeg.

History and development

Development traces through forks and collaborations originating from the OpenOffice.org codebase and community efforts following governance changes involving corporations like Sun Microsystems and Oracle Corporation. After the creation of The Document Foundation in 2010, volunteers and developers from distributions such as Debian, Ubuntu (operating system), Fedora (operating system), openSUSE, and companies including Collabora and Red Hat contributed to Impress’s evolution. Major releases have corresponded with LibreOffice versions and have been presented at events like FOSDEM, LibreOffice Conference, and LinuxCon where contributors from projects including GNOME Project, KDE, and Mozilla Foundation collaborated on interoperability and accessibility.

Features and functionality

Impress includes slide masters, speaker notes, handout printing, and export options used by professionals in organizations like United Nations, World Health Organization, European Commission, and UNESCO. It offers drawing and diagramming features analogous to Microsoft Visio and integrates with vector formats from SVG and raster backends used by ImageMagick. Animation paths and transitions leverage graphical toolkits and APIs found in Cairo (graphics) and Skia (graphics library), while multimedia playback depends on codecs from projects such as libav and GStreamer.

File formats and interoperability

Impress natively uses OpenDocument Presentation (ODP) format developed through the OASIS (organization) standards process and supports import/export for Microsoft PowerPoint formats (.ppt, .pptx) and legacy formats tied to Microsoft Office 97. It can export to PDF, SWF (Shockwave Flash), and image formats used in publications like arXiv or presentations at ACM conferences. Interoperability efforts have involved testing with suites like Apache OpenOffice, Google Workspace, and conversion tools maintained by organizations such as Document Foundation and companies including Aspose.

User interface and accessibility

The user interface follows paradigms familiar to users of Microsoft Office and Apple macOS apps, with toolbars, sidebar inspectors, and a slide pane; it integrates accessibility features aligned with initiatives from W3C and GNOME Accessibility Project to support users reliant on assistive technologies such as Orca (screen reader) and NVDA. Localisation has been coordinated alongside communities from countries represented by institutions like European Commission translation services and volunteers from projects such as Translatewiki.net. The UI toolkits and themes draw from GTK and Qt ecosystems and align with desktop environments including GNOME and KDE Plasma.

Extensions, templates, and macros

Impress supports extensions and scripting via languages and frameworks including Python (programming language), LibreOffice Basic, and Java (programming language), with extension distribution coordinated through The Document Foundation’s extension site and third-party repositories maintained by communities like GitHub and GitLab. Template libraries and slide packs are shared by educators, designers, and organizations such as Creative Commons, Wikipedia, and NGOs collaborating on open content. Macro automation interfaces are analogous to automation in Microsoft Office and have been used in projects linking to SIP (VoIP) integrations and JasperReports exports.

Reception and usage

Impress has been adopted by educational institutions like Massachusetts Institute of Technology, University of Cambridge, University of Oxford, and public administrations in countries such as Germany, Italy, and Spain for cost-effective office productivity. Reviews in outlets covering software and open source such as ZDNet, The Verge, Ars Technica, and Linux Journal have compared Impress’s features and compatibility to competitors including Microsoft PowerPoint and Apple Keynote, while advocates from organizations like Free Software Foundation and Electronic Frontier Foundation highlight its role in digital sovereignty and open standards.

Security and licensing

Impress is released under the Mozilla Public License v2.0 and is part of the LibreOffice codebase governed by contributor agreements and policies involving entities such as The Document Foundation, corporate contributors like Collabora and CIB (software company), and community projects audited by teams with expertise from CERT Coordination Center and privacy advocates including EFF. Security updates and mitigation strategies follow practices discussed in forums such as CVE (Common Vulnerabilities and Exposures) and are coordinated during releases alongside upstream libraries like OpenSSL and libreofficekit.

Category:Presentation software