What Is an ATS for CVs? How to Optimise Yours

Why Your CV Can Be Rejected Before Any Human Reads It

Here's a reality most candidates are unaware of: in the majority of large companies, your CV is never read by a human unless software has validated it first. That software is called an ATS — Applicant Tracking System — and it filters, scores and ranks applications automatically before any recruiter lays eyes on them.

The result: perfectly competent candidates get their CV thrown out simply because their document isn't machine-readable. Not because of the content. Not because of the experience. Because of the format.

This article explains what an ATS is, how it actually works, and — most importantly — what you need to do to get your CV through the filter.

What Is an ATS, Exactly?

ATS stands for Applicant Tracking System. It's a piece of software used by HR teams and recruitment agencies to centralise, sort and evaluate incoming applications.

Recent studies show that over 75% of large companies use an ATS, a figure that rises above 95% in the Fortune 500. The best known: Workday, Taleo (Oracle), SmartRecruiters, Greenhouse, Lever, iCIMS, Bullhorn.

An ATS does three main things:

1. Parses the CV to extract structured data: name, contact info, experience, education, skills, dates…
2. Scores the CV against the job posting: keyword match, years of experience, required degrees, location…
3. Ranks applications by relevance and presents them to the recruiter in a filterable order.

Concretely: when you submit your CV, it first goes through this machine. If the ATS can't extract your information properly, or if your match score is too low, you never appear in the shortlist the recruiter actually reviews.

Why Many CVs Are Mis-Read by ATS

ATS tools are effective, but they have very real technical limits. Here are the mistakes that sink your CV without you realising.

1. Cross Columns and Complex Layouts

A two-column CV can look elegant to human eyes, but the ATS reads the document as a linear stream of text. If your layout mixes multiple columns, the software may interleave content: it reads one line from the left column, one from the right, and produces gibberish.

2. Text Inside Images

A photo with your name written on it, a "skills" block that's actually a graphic, a logo containing your title… anything that's an image instead of text is invisible to the ATS. The content exists for your eyes but not for the machine.

3. Exotic Fonts and Special Characters

Highly stylised fonts, ligatures, decorative Unicode characters (★, ●, ▸) can be mis-decoded. Same for icons used in place of labels: replacing the word "Email" with a tiny envelope looks nice, but the ATS won't understand an email follows.

4. Headers and Footers

Some ATS simply ignore content placed in PDF headers or footers. If your contact info sits in the header… it can vanish entirely.

5. Tables

Word or HTML tables exported to PDF are often poorly parsed. The tool reads cell by cell without understanding the structure and spits out mush.

6. Scanned or Image-Only Files

A CV that was printed then scanned, or exported as an image, no longer has a text layer. Visually perfect, but completely unreadable to an ATS.

How an ATS Scores Your CV: the Keyword Match

Once your CV is parsed, the ATS compares it to the job posting. The main mechanism is keyword matching: the software looks in your CV for the keywords present in the job description.

These typically include:

• Technical skills (Python, SQL, Salesforce, SAP, advanced Excel…)
• Soft skills (leadership, project management, communication…)
• Certifications (PMP, AWS, Google Analytics…)
• Degrees (Master's, MBA, BSc…)
• Job titles similar to the ones you've held
• Years of experience with specific tools or domains

The more relevant keywords your CV contains, the higher your score and the further up the queue you rank.

But be careful: the score isn't everything. Modern ATS also detect keyword stuffing (white text on white background, repeating a word 15 times, pasting the job description at the bottom of the CV). Tricks like these don't just fail — they can disqualify you.

10 Practical Rules to Optimise Your CV for ATS

Here's the checklist to apply methodically.

1. Export as a "Text" PDF

Always export your CV as a text PDF, not as an image. If you can select and copy the text from your CV, the ATS can too. If you can't, neither can it.

2. Keep the Structure Simple

One or two columns maximum, no exotic layout. Section titles should be obvious: "Work Experience", "Education", "Skills", "Languages" — not "My Journey" or "What I Can Do". If you're unsure which style to go for, our guide Design CV or Neutral CV: Which to Choose helps you decide based on your industry.

3. Use Keywords from the Job Posting

Re-read the job ad carefully. Note the technical skills, tools, action verbs and titles mentioned. Use them literally in your CV if they honestly describe what you can do. Don't paraphrase when you can quote.

4. Don't Rely on Icons as Sole Labels

If you use an icon (phone, envelope, LinkedIn), always pair it with text. The icon decorates; the text informs.

5. No Text Inside Images

No critical information should be embedded in an image — including inside your photo. Your name, title and contact details must all be real text.

6. Name Your File Properly

A file named CV-Marie-Laurent-FullStack-Developer.pdf is handled better than document (3) final.pdf. It doesn't affect parsing but helps indexing on the recruiter's side.

7. Use Standard Date Formats

Prefer 2022 – 2024 or January 2022 – March 2024. Avoid Jan'22 → Mar'24 or other creative forms that lose the parser.

8. Avoid Headers and Footers for Critical Info

Put your name, email and phone in the main body of the document, not in a Word header.

9. Use Standard Fonts

Inter, Helvetica, Arial, Calibri, Georgia, Times New Roman. Widely-adopted system or open-source fonts parse reliably. Avoid exotic decorative fonts.

10. Test Your CV

Simple trick: copy-paste the content of your PDF into a plain text editor. If the result is readable, in the expected order, your CV is ATS-friendly. If the text is scrambled, interleaved or incomplete: time to rework it.

A Good CV Isn't a Visually Bland CV

A persistent myth: to get through an ATS, you have to give up all design and settle for an austere black-and-white document. False. A CV can be visually polished, have a strong identity, use colours and thoughtful typography — as long as the underlying text layer is clean and linear.

This is exactly the principle behind CV Creator templates: every template, design or neutral, embeds a dedicated ATS text layer that guarantees the information is structured, ordered and readable for software, independently of the visual rendering meant for the human eye.

You get the best of both worlds: a CV that appeals to recruiters and passes automated filters.

Create an ATS-Optimised CV with CV Creator

CV Creator offers 20+ professional templates, all optimised for a maximum ATS score. Edit online without signup, download your PDF in minutes — €2 one-time, no subscription. Whether you're applying to a large company with a demanding ATS or sending a cold application to an SME, your CV will be read correctly, everywhere.

To go further on CV writing:

• How to write the perfect CV
• Tailoring your CV to each job offer
• 5 CV mistakes to avoid