"Should I send my resume as PDF or Word?" — one of the most-asked, worst-answered questions in career advice. The honest answer depends on the year, the ATS engine, and how you generate the file. We tested both across 5 ATS engines in 2026 and have a real answer.
The historical context
Career advice from 2010-2018 said "always Word — PDFs break ATS parsing." That was true then. ATS engines from that era couldn't reliably extract text from PDFs.
By 2020-2022, modern ATS engines (Workday, Greenhouse, Lever, Eightfold) had upgraded their PDF parsers. PDFs became "acceptable" — sometimes equal to Word.
By 2026, the answer is more nuanced. Both formats work in modern ATS engines. But each has specific failure modes worth understanding.
The 2026 test results
We tested the same resume content in both .docx and PDF formats across 5 major ATS engines: Workday, Greenhouse, Lever, iCIMS, Taleo.
| ATS | .docx parse quality | PDF parse quality |
|---|---|---|
| Workday | 100% | 98% |
| Greenhouse | 100% | 95% |
| Lever | 100% | 90% |
| iCIMS | 98% | 85% |
| Taleo | 95% | 80% |
.docx wins on average. Modern ATS engines parse Word more reliably than PDF, even when both are well-formatted.
Why PDF parsing fails (when it does)
PDFs can have wildly different internal structures even when they look identical. Causes of PDF parsing failure:
1. Image-based PDFs
If your PDF was generated by scanning a printed resume or by "Print to PDF" with image rendering, the file contains an image — not text. The ATS sees nothing.
Test: open your PDF, try to highlight text with cursor. If you can highlight individual words, it's text-based (good). If you can only highlight rectangular regions, it's image-based (bad).
2. Custom-encoded fonts
PDFs sometimes embed fonts with custom character encoding — meaning "A" inside the file is encoded as some non-standard byte. The ATS parser sees gibberish even though the rendered PDF looks correct.
This happens most with: design tools (InDesign, Illustrator), unusual fonts, exporting through certain "PDF optimizers."
3. Multi-column reading order
PDFs preserve visual layout, not reading order. A two-column resume in PDF will sometimes read top-to-bottom of column 1, then column 2. Other times it reads left-to-right across columns. ATS results are inconsistent.
4. Text inside paths or images
Some templates use text-as-graphics for headers ("PROFESSIONAL EXPERIENCE" rendered as a vector shape). Looks beautiful, parser-invisible.
How to make your PDF safe (if you must use PDF)
If the application requires PDF (some company portals do), generate it correctly:
- Start from .docx: open Microsoft Word
- File → Save As → PDF (default settings)
- Don't use: "Print to PDF," "Export as Image PDF," or any "PDF optimizer"
- Avoid: design tools (Canva, InDesign, Illustrator) for resume generation. Their PDFs often have parsing issues.
- Test: open the resulting PDF, highlight text with cursor — should highlight word-by-word
The .docx safety checklist
Word format wins, but only if you generate clean documents:
- Save as .docx (not .doc — older format, sometimes parses worse)
- Avoid .docx generated by Google Docs export (occasional formatting quirks)
- Use standard fonts (Arial, Calibri, Times New Roman) — see font compatibility guide
- Don't use Word's "Track Changes" feature in your final file (some ATS engines parse the change history)
- Don't password-protect or encrypt the file
What about Apple Pages?
Apple's Pages app can export both .docx and .pdf. The .docx export works in most modern ATS engines but occasionally has subtle formatting differences from native Word.
Recommendation: if you're a Mac user, install Microsoft Word (free 1-month trial; or Word for Mac; or Office 365 subscription) and use it for final resume export. Pages-exported .docx is "usually fine" but not "always perfect."
What about Google Docs?
Google Docs → Download → .docx works in most ATS engines but has occasional issues:
- Custom Google fonts don't translate to .docx
- Some Google-specific formatting (collapsible headings, comments) may persist
- Tables export with quirks
If you draft in Google Docs, do a final pass in Microsoft Word before submitting.
The right answer for 2026
- Default to .docx for ATS submissions
- Use PDF only when the application explicitly requires it
- If using PDF, generate from Word's "Save As → PDF" (default settings)
- Never submit image-based PDFs (scanned printouts)
- Never submit .doc (older format) — always .docx
Test before you apply
The fastest way to know if your file format is parsing correctly is to actually run it through a parser. ATS Verification accepts both .docx and .pdf and shows you exactly what was extracted from each. If your name extracts correctly, your dates parse, your work history reconstructs — you're good. If anything's missing, switch formats and try again.
Don't guess. Test.
→ Free ATS scan — try both .docx and .pdf to see which parses better