Word to PDF

Converting Word to PDF is one of the hardest "easy" tasks in document processing. Word's .docx format describes a document at a high level (paragraphs, runs, styles, sections) and leaves rendering decisions to whichever application opens it. PDF is the opposite — it freezes every character at a precise position. The conversion has to "render" the abstract Word document into concrete pixel positions, which means correctly handling fonts, line-breaking, hyphenation, table layout, and dozens of edge cases.

SwitchPDF uses LibreOffice's headless conversion mode for this. LibreOffice opens your .docx, renders it using its layout engine (which has been refined over 20+ years of OpenOffice/LibreOffice development), and exports the result to PDF. This is the same approach enterprise document automation systems use because it handles tables, embedded fonts, comments, headers/footers, footnotes, and complex layouts faithfully.

The output preserves fonts when they are embedded in the Word file or available on our server (we have the standard set: Arial, Times, Helvetica, Calibri, etc.). If your document uses an unusual font that is not embedded, LibreOffice falls back to the closest matching font, which may shift line breaks slightly. For pixel-perfect fidelity with custom fonts, embed them in the Word file before conversion (File → Options → Save → Embed fonts).

This tool is widely used for: generating PDF copies of contracts to send to clients, archiving Word documents in a stable format, preparing print-ready files, and creating shareable read-only versions of internal documents.