Applicant tracking systems (ATS) reject more resumes than humans do – usually before a recruiter ever lays eyes on them. The good news: nearly every ATS rejection is caused by fixable formatting mistakes, not by your qualifications.

An ATS is a piece of software that parses your resume, extracts the structured information (name, contact info, work history, skills, education), stores it in a database, and lets recruiters search and filter against it. If the ATS cannot parse a section, that section effectively does not exist in the recruiter’s search results.

What Modern ATS Parsers Actually Look For

Today’s ATS parsers are looking for clearly labeled sections (Experience, Education, Skills), standard date formats, job titles and company names on separate lines, real selectable text (not images of text), and consistent formatting patterns. They struggle with multi-column layouts where reading order is ambiguous, text inside graphics or text boxes, headers and footers (often skipped entirely), and creative section names like “My Journey” instead of “Experience.”

The Six ATS Killers

1. Text inside images or graphics – ATS reads zero of it. 2. Headers and footers – many ATS systems ignore them completely, so contact info there can vanish. 3. Tables for layout – some ATS parsers read top-to-bottom only, scrambling table data. 4. Non-standard section names – “What I’ve Done” does not parse as “Experience.” 5. Fancy fonts or symbols – unusual characters may not render in the parsed text. 6. PDF as an image – a “PDF” that’s really a scanned document has zero parseable text.

How to Test Your Resume

Open your PDF and try to select and copy the text. If you can select every word, an ATS can too. If text comes through scrambled, garbled, or missing, that’s exactly how the ATS will see it. Better still: a good resume builder runs an automated ATS pre-flight that catches these issues before you submit.

Bottom line: most ATS rejections are formatting, not qualifications. Fix the format and your resume gets read by the human you wanted it to reach.