Converting a Word document to PDF is one of the most common file tasks — and one of the easiest to do for free. Here are five methods, from fastest to most control, with honest notes on which preserves formatting best.
Why Convert Word to PDF?
PDF is the universally readable format — it looks the same on every device, operating system, and screen size, regardless of whether the recipient has Microsoft Office installed. Sending a .docx file is risky: fonts may substitute, spacing may shift, and the layout you spent hours perfecting can look different on the other end. PDF locks the presentation.
Method 1: PrivaTools Word to PDF (Online, No Software)
The fastest option if you don't have Office installed:
- Open PrivaTools Word to PDF.
- Upload your .docx file (up to 100 MB).
- Click Convert and download the PDF.
Conversion uses LibreOffice under the hood, which handles most formatting correctly — headings, bold/italic, images, tables, and standard paragraph styles. Your file is deleted immediately after conversion.
Formatting fidelity: Excellent for standard documents. Complex custom styles, tracked changes, or embedded macros may not survive perfectly.
Method 2: Google Docs (Free, Browser-Based)
- Upload the .docx to Google Drive.
- Open it with Google Docs (right-click → Open with → Google Docs).
- Go to File → Download → PDF Document (.pdf).
Formatting fidelity: Good for simple documents. Google Docs re-renders the document in its own engine, which can shift spacing on complex layouts. Headers/footers, custom page sizes, and intricate tables sometimes look different.
Privacy note: Your document is uploaded to and processed by Google's servers. It will remain in your Google Drive unless you delete it.
Method 3: Microsoft Word (Save as PDF)
If you have Microsoft Word (desktop or Microsoft 365):
- Open your document in Word.
- Go to File → Save As → PDF (or File → Export → Create PDF/XPS).
- Choose whether to optimize for Standard (print quality) or Minimum size (web).
Formatting fidelity: Best. Word renders its own format natively, preserving every typographic detail exactly.
Cost: Requires a Microsoft 365 subscription or perpetual license.
Method 4: LibreOffice (Free Desktop App)
- Download and install LibreOffice (free, open source).
- Open your .docx in LibreOffice Writer.
- Go to File → Export As → Export as PDF.
Formatting fidelity: Very good for standard documents. Matches what PrivaTools produces (same rendering engine). Better than Google Docs for complex layouts.
Best for: Users who need offline conversion without a subscription.
Method 5: macOS Print to PDF (Built-In)
Every Mac has a built-in PDF printer — no software needed:
- Open the .docx in any application (even Preview can open simple Word files).
- Press Cmd + P to open the Print dialog.
- Click the PDF dropdown in the bottom-left → Save as PDF.
Formatting fidelity: Depends on the application you used to open the file. If opened in Pages or Preview rather than Word, formatting can shift significantly.
Which Method Preserves Formatting Best?
| Method | Formatting Fidelity | Cost | Privacy |
|---|---|---|---|
| Microsoft Word | Excellent | Paid | Local |
| LibreOffice | Very good | Free | Local |
| PrivaTools | Very good | Free | Files deleted immediately |
| Google Docs | Good | Free | Stored in Google Drive |
| macOS Print to PDF | Varies | Free | Local |
What About .doc Files (Older Word Format)?
All five methods above also work with the older .doc format, though formatting fidelity may be slightly lower due to the format's age and quirks. If possible, re-save .doc files as .docx before converting.