How to Convert Word to PDF

By Michael Peters · Published April 16, 2026 · Last updated April 16, 2026 · 6 min read

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Quick summary

You can also convert Word documents to PDF online for free using Mapsoft's PDF Hub — no installation required.

Why convert Word to PDF?

Word is the universal document editor; PDF is the universal document for distribution. The two roles are different enough that nearly every Word document ends up as a PDF before it's shared, printed, or archived.

• Consistent rendering. A .docx file can look different on every machine — fonts substitute, line breaks shift, images rescale. A PDF looks identical everywhere.
• Uneditable delivery. A PDF signals "this is the final version" in a way Word documents don't.
• Signability. Digital signatures are a standard PDF feature. Signing a Word document is possible but awkward.
• Archival. The Word format changes every few years; PDF (especially PDF/A) is stable over decades.
• Submission and compliance. Courts, regulators, and most document management systems accept PDF, not .docx.
• Smaller distribution size. For complex documents with embedded images, the PDF is often smaller than the source Word file.

Methods

Method 1 — Microsoft Word on Windows

In Word 2013 and later: File → Save As, pick a location, set the "Save as type" dropdown to PDF (*.pdf), and click Save. Before saving, click Options to control:

• Page range to convert.
• Bookmarks from Word headings (enable this — it produces a navigable PDF outline).
• Document properties and tags (essential for accessibility).
• ISO 19005-1 compliance (PDF/A) for archival output.
• Optimise for print quality or minimum size.

Word's conversion is high-fidelity because it has direct access to every element of the source document. Fonts embed correctly, headings become bookmarks, tables and forms render accurately.

Method 2 — Microsoft Word on macOS

File → Save As, choose PDF from the File Format dropdown, and click Export. Alternatively File → Print → PDF → Save as PDF uses macOS's native print pipeline — slightly different output (no bookmarks by default) but works in any app.

For more control over bookmarks, tags, and PDF/A output, use File → Export instead of Save As.

Method 3 — Online, free

Mapsoft's Word to PDF tool accepts .doc and .docx uploads and returns a PDF in the browser. Good for machines without Word installed. For most documents the result matches Word's own conversion; complex forms, macros, and heavily-themed templates may lose some fidelity.

Method 4 — LibreOffice (free, offline)

LibreOffice Writer opens Word documents and can export to PDF. Open the file, File → Export as PDF. The dialog is similar to Word's, with extra controls for PDF/A level, digital signatures, and bookmark generation.

For batch work, LibreOffice has a headless mode:

• libreoffice --headless --convert-to pdf *.docx converts every .docx in the current folder to PDF.
• libreoffice --headless --convert-to "pdf:writer_pdf_Export:PDFAVersion=1" file.docx produces PDF/A-1b output.

Method 5 — Adobe Acrobat

With Acrobat Pro installed, right-click a .docx in Windows Explorer and choose Convert to Adobe PDF. Acrobat uses its own PDFMaker plugin (installed alongside Acrobat) which integrates with Word and produces high-quality output including tagged PDF for accessibility.

Settings that matter

• Enable bookmarks from headings. One click adds a navigable PDF outline from Word's Heading 1/2/3 styles. Essential for anything longer than a few pages. See our PDF bookmarks guide.
• Embed fonts. Most tools do this by default, but check the resulting PDF's Document Properties → Fonts tab to confirm. Missing fonts look fine in Word and wrong everywhere else.
• Tag for accessibility. Set "Document structure tags for accessibility" on Windows, or "Best for electronic distribution and accessibility" on macOS. Produces a tagged PDF that screen readers can navigate.
• Keep tracked changes out. If the source document has accepted-but-tracked changes, or visible comments, they'll appear in the PDF. Clear them first or set the conversion to exclude them.
• Watch links. Word's cross-references, footnotes, and hyperlinks all carry through to the PDF automatically. External URLs become clickable links.
• Decide on colour. Word's default converts to RGB. If the PDF is going to commercial print, convert colours to CMYK afterwards (our colour conversion post covers this).

Common issues

• Fonts substituted. Custom or corporate fonts installed on the editing machine may not be available when the document opens elsewhere. Embedding fixes this if the font's licence permits.
• Page breaks shift. Usually caused by printer driver differences or font metrics. Use "Save As PDF" rather than "Print to PDF" for the most faithful conversion.
• Tables look different. Complex Word tables with shading, merged cells, or borders sometimes render subtly differently. Review tables after conversion on a sample before batch-processing.
• Embedded Excel or images look blurry. Word embeds OLE objects (like embedded charts) that may be converted to raster images at lower resolution. Replace with native PDF-friendly equivalents (PNG, direct tables) if quality matters.
• Large file size. Word-to-PDF output is sometimes surprisingly large because of uncompressed images or embedded fonts for every variant. Run a compression pass afterwards.

Frequently Asked Questions

How do I convert a Word document to PDF for free?

Microsoft Word itself has a built-in Save As PDF feature (all modern versions). LibreOffice Writer does the same and is free. Online tools like Mapsoft's PDF Hub handle it without installing anything. macOS has Print to PDF in every app.

Which method preserves formatting best?

Word's own Save As PDF has the highest fidelity because it has full access to the document's structure. LibreOffice is a close second. Print-to-PDF methods (Windows "Microsoft Print to PDF", macOS Save as PDF from Print dialog) work but produce less-structured output — no bookmarks, weaker accessibility.

Can I convert Word to PDF without installing anything?

Yes. Online tools like Mapsoft's Word to PDF run in the browser. For batch work without Microsoft Word, install LibreOffice (free) and use its command-line mode.

How do I preserve Word headings as PDF bookmarks?

In Word's Save As PDF dialog, click Options and enable "Create bookmarks using: Headings". The PDF's outline panel will show a navigable tree based on your Heading styles.