When sending your resume to a company you need to know that many companies, and this Headhunter, use some sort of an Applicant Tracking System or ATS. An ATS will likely have a parsing engine that will scan your resume and input data in to the proper fields like name, address, employment history, skill set etc.
In order to ensure proper scanning and parsing of your resume refrain from using bold, italics, or underlining. While it may look good on “paper” parsing engines do not like these tools.
Send your resume as a Word or similar easily read text format. PDF’s are not read by the ATS’s.