PDF vs DOCX: Which Document Format Should You Use?
5 min read
PDF and DOCX are the two most common document formats in the world. But when should you use each one? Here's everything you need to know.
PDF vs DOCX: Quick Comparison
| Feature | DOCX | |
|---|---|---|
| Editability | View-only (mostly) | Fully editable |
| Formatting | Fixed — looks the same everywhere | May shift between computers |
| File size | Usually smaller | Can be larger with images |
| Security | Can be password-protected | Limited protection |
| Compatibility | Universal — opens on any device | Needs Word or compatible app |
| Best for | Sharing final documents | Creating and editing documents |
When to Use PDF
- Sending final documents — contracts, invoices, reports
- Printing — PDF ensures WYSIWYG printing
- Legal documents — non-editable format prevents tampering
- Cross-platform sharing — opens the same on any device
- Archiving — PDF/A format ensures long-term readability
When to Use DOCX
- Writing and editing — essays, drafts, collaborative documents
- Templates — resumes, letters, forms you'll reuse
- Collaboration — when others need to make changes
- Mail merge — personalized letters and labels
How to Convert Between Formats
- DOCX → PDF: Use our free Word to PDF converter
- PDF → DOCX: Use our free PDF to Word converter