Sending a resume as a .docx file risks it looking different on the reviewer's computer if their version of Word (or a different program entirely) renders fonts or spacing differently. A PDF looks the same everywhere.
A PDF locks in the exact layout, fonts, and spacing you see when you export it, regardless of what software or device the person reviewing it opens it on. Many application portals also require PDF specifically for this reason.
Unusual column layouts or custom fonts not available in the browser can occasionally render slightly differently. If that happens, simplifying the layout in Word before reconverting usually resolves it.
Ready to try it yourself?
Convert your resume to PDF →A PDF preserves exact formatting across any device or software, while a .docx file can shift slightly depending on the Word version or program used to open it.
Standard formatting converts cleanly; unusual layouts or uncommon fonts are the most likely things to need a visual double-check afterward.