Once you've finished your resume, a simple but important question comes up: PDF, or Word (.docx)? The answer is a bit more nuanced than it looks. This article covers when to choose which format.
The General Rule: Follow the Posting's Instructions
If the posting or application form asks for a specific format (e.g., "please upload your resume as a PDF"), follow that instruction — this is the safest, most uncontroversial rule.
No Instructions? PDF Is Usually Safer
If there's no explicit instruction, a text-based PDF is the safest choice in most cases, because:
- Formatting doesn't break. A Word file can shift its layout when opened on a different computer, a different Word version, or a system without a particular font installed. A PDF stays fixed exactly as you created it.
- Appearance is guaranteed. Margins, line breaks, and table alignment don't change in a PDF.
- The vast majority of modern ATS systems read PDFs cleanly — parsing issues with PDFs used to be more common, but current systems generally handle text-based PDFs without trouble.
When Is Word (.docx) Preferred?
- If the posting specifically asks for .docx.
- If the person reviewing your application needs to make notes or edits directly on your resume (this happens in some agency/consulting processes).
- If it's known that a particular, older corporate ATS has documented issues parsing PDFs (this is usually noted in the application instructions on the company's careers page).
Format Mistakes to Avoid
- A PDF that's actually a scanned image. If the text inside can't be selected, neither an ATS nor a human eye can read it.
- Resumes exported as a page image (e.g., a resume saved as a PNG/JPEG from a design tool and pasted into a PDF).
- Unusual file extensions (.pages, .odt, etc.) — these can cause problems on the recipient's system.
How to Check
After exporting your PDF, open it and try selecting and copying a sentence with your mouse. If you can select the text, your file is text-based and safe to send. For more testing methods, see What Is an ATS?.
Resumes built with CV Mimarı always download as a text-based, ATS-friendly PDF — no risk of broken formatting.
Generate an Auto-Compatible PDFA File-Naming Tip
The file name matters almost as much as the format itself: a clear name like "First_Last_Resume.pdf" — instead of something vague like "resume_final_v3_actualfinal.pdf" — makes it easier for a recruiter to find your file and looks more professional.
Conclusion
Unless the posting says otherwise, a text-based PDF is the safest choice in most cases. What matters is that whichever format you choose, the file's text is selectable and its layout is intact.