LibreOffice
LibreOffice is a free, open-source office suite offering word processing, spreadsheets, presentations, and more. It allows secure document storage on local or network drives and supports industry-standard file formats. Document generation tools, custom templates, and offline access are core functionalities. While e-signatures typically require third-party integrations, built-in collaboration is possible through track changes and comments. Users benefit from robust search, file sharing (via cloud or local systems), and advanced permission settings for secure data.