This doesn't quite make sense to me. Sending your Resume in .docx is kind of a terrible idea, and I've seen countless people running mainstream Windows version getting bitten by this. On top this, in my experience it's *much* easier for me as an interviewer to review your resume in PDF rather than docx (even if I have access to MS Word or Google Docs). I have never seen any company or recruiter (in the US) who prefers docx but I've seen multiple companies (including my own) that prefer PDF.
So, someone going out of their way to type their resume in wine word, only for it to be a scrambled mess... I would strongly recommend you not to do this. If you're emailing your resume and you absolutely want to go ahead with your plan, please consider adding both the pdf and docx. Good luck!