PDF vs Word: Which Format Should You Use and When?
One of the most common questions in office and academic settings: should I send this as a PDF or a Word document? The answer depends on whether you want the recipient to read and print the file, or edit and collaborate on it.
The Core Difference
- Word (.docx): Editable. Formatting may vary across different versions of Word or other word processors.
- PDF (.pdf): Locked layout. Looks identical on every device and operating system. Cannot be easily edited without specialized software.
When to Use PDF
Final documents: Once a document is finished — a contract, resume, report, or invoice — convert it to PDF. PDFs look identical on every device, preserving your fonts, layout, and formatting exactly.
Resumes and job applications: Always send your resume as a PDF. A Word document may look completely different on the recruiter's computer if they use a different version of Word or a different operating system.
Legal and official documents: Contracts, agreements, and official correspondence should be PDFs. They cannot be accidentally edited by the recipient.
Forms: PDF forms lock the layout while allowing recipients to fill in designated fields.
Print-ready files: PDFs are the standard format for sending files to printers. They embed all fonts and images precisely.
Sharing with non-Microsoft users: Not everyone has Microsoft Word. PDFs open in any browser without additional software.
When to Use Word (.docx)
Collaborative editing: If multiple people need to edit the same document, Word (or Google Docs, which can export to Word) is the right choice. Track Changes allows reviewers to suggest edits.
Living documents: Documents that are frequently updated — meeting notes, project proposals still in draft, style guides — should stay in Word until finalized.
Templates: Word documents are easier to repurpose as templates. Recipients can fill in their own information and modify the structure.
When the recipient specifically asks for it: Some companies and academics require editable submissions.
Quick Reference
| Situation | Use |
|---|---|
| Sending a resume | |
| Sending a draft for review | Word |
| Legal contract | |
| Collaborative writing | Word |
| Invoice | |
| Email newsletter draft | Word |
| University submission | Depends on instructions |
| Presentation handout |
How to Convert Between Formats
- Word to PDF: In Microsoft Word, go to File → Save As → PDF. In Google Docs, File → Download → PDF Document.
- PDF to Word: Use ToolFlow's PDF to Word converter to extract editable content from a PDF.
File Size Considerations
Word documents can be large if they contain embedded images. PDFs with compressed images are usually smaller and more appropriate for email. Always compress PDFs before sending if size is a concern.
Conclusion
Use PDF for final, formal, and shared documents. Use Word for documents that are still being edited or collaborated on. When in doubt, PDF is the safer choice for sharing — it guarantees your formatting is preserved.