gats15, no one receiving your resume should be editing it.
Speaking as someone who receives files from a Zoning Officer, lawyers and a printing company, I appreciate it when we receive them as pdf files. We have 8 computers in the house and needless to say, we do not have Office installed on all of them. In fact, my husband prefers WordPerfect.
It is nice to have a quick look at a file without turning on a computer that can read docx or even doc files.