Comparison
PDF vs Word: which format should you use?
By Mergevanta · Updated · 2 min read
Quick answer
What is the difference between PDF and Word?
A Word document (.docx) is made to be edited: text reflows and anyone with Word, Pages or Google Docs can change it. A PDF is made to be shared and printed: it looks the same on every device but is hard to edit. Draft in Word, then send the final version as a PDF.
PDF vs Word at a glance
| Word (.docx) | ||
|---|---|---|
| Main purpose | Writing and editing | Sharing, printing and archiving |
| Looks the same everywhere | Not always — depends on the app and fonts | Yes |
| Easy to edit | Yes | No — needs a PDF editor or conversion |
| Opens without extra software | Needs Word, Pages, Google Docs or similar | Opens in any web browser |
| Tracked changes | Yes | No — comments and annotations only |
| Long-term archiving | Not ideal | Yes, as PDF/A |
| Best for | Drafts and collaboration | Final versions, forms and contracts |
When to use Word
- While a document is still being written, reviewed or negotiated.
- When several people need to edit it, with comments and tracked changes.
- For templates — letters, invoices or reports you fill in again and again.
When to use PDF
- For the final version you send to someone else: a contract, invoice, CV or report.
- When the layout must not move — forms, brochures, anything that will be printed.
- When the reader may not have Office: every phone and computer can open a PDF.
- For records you need to keep for years, ideally as PDF/A.
How to convert between PDF and Word
Turn a finished document into a PDF with Word to PDF, or get an editable .docx back from a PDF with PDF to Word. To combine several files first, use Merge Word or Merge PDF. All four are free, with no watermark and no sign-up.