An applicant tracking system — an ATS — is the software an employer uses to collect and manage applications. Understanding what it does removes most of the anxiety about it.
What actually happens to your file
- You upload a PDF. The system extracts the text.
- It tries to work out which text is your name, your employers, your dates, your titles, your skills.
- It files that into a searchable record.
- A recruiter searches, filters, and sorts that pool — then opens the resumes that surface.
The important part is step 4: a person still reads it. The system mostly ranks and surfaces. It's a filing cabinet with a search box, not a judge.
The "75% of resumes are rejected by a robot" claim
It isn't true, and it's traceable. That figure came from a company that folded over a decade ago and has been recycled ever since without a study underneath it.
What does happen: some applications are gated by knockout questions before a human sees anything — do you have the right to work here, do you hold this license, do you have this many years of experience. Those are answers you type into a form, not something read off your resume.
The real risks are duller than the myth: your resume parses badly, so the record built from it is wrong; or it parses fine and simply ranks below better-matched candidates.
What genuinely causes trouble
- Tables used for layout. Text inside cells can come out in the wrong order.
- Text boxes and floating shapes. Content in them may be skipped entirely.
- Multi-column layouts that interleave when read left to right.
- Contact details in a page header or footer. Not always read. Keep them in the body.
- Text inside an image, including a logo containing your name. Not text at all.
- Non-standard section headings. My Journey may not be recognized as work experience.
- Decorative bullet glyphs — stars, arrows, icons — where a plain bullet is safe.
You'll notice you can't do most of these things here. That's the point of the template system: layout is ours to get right, so a bad layout isn't a mistake you can accidentally make.
What doesn't cause the trouble people fear
- A PDF is fine. Modern systems read text-based PDFs, and every PDF we generate is real text, not a picture of text.
- A second page is fine. Nothing truncates at page one.
- Color is fine. It's simply ignored by the parser.
- Hidden white text is not a clever trick. See below.
Keyword tricks are now a detection target
Stuffing your resume with invisible keywords used to be passed around as a hack. It has become a liability. Employers have detection for it, and the tactic is visible the moment someone copy-pastes your resume into another field — white text becomes black text.
Greenhouse, which processes hundreds of millions of resumes a year, found hidden text in around 1% of resumes in the first half of 2025, and 22% of hiring managers in their survey reported catching hidden instructions in applications. Being caught doing this doesn't get you filtered out politely; it ends the conversation.
More on why we cap what we suggest: why we don't suggest more keywords.
What to actually do
- Use an ATS-strict template when you're uploading into a portal.
- Use standard section headings.
- Put your contact details in the body.
- Match the language of the posting where it's honestly true of you — write "project management" if that's the phrase they used and it's what you did.
- Fill in the application form carefully. It's often what the knockout rules read.
Good to know
- The ATS Ready dimension in AI review is about whether your content is cleanly parseable and complete — not a verdict on your template's looks. Every template we ship produces real, extractable text.
- More on how parsing shapes our defaults: what ATS parsers actually do with your resume.