The Office to PDF feature converts Office documents into PDF files while preserving the original layout and formatting. It supports Word (.docx, .dotx, .rtf, .doc), PowerPoint (.pptx, .potx, .ppt), Excel (.xlsx, .xltx, .xls, .xlt) and OpenDocument (.odt, .ott, .odp, .ods) files up to 100 MB. Conversion runs on either the Microsoft Office or LibreOffice engine (OpenDocument formats always use LibreOffice), and you can supply a password for protected documents and optionally optimize the result for a smaller file size.