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Why Complex PDFs Break Recruiter Algorithms

Mar 20, 2026•
Anna M.Anna M.
Why Complex PDFs Break Recruiter Algorithms

Fonts Turning Into Pictures

Canva, Figma, and many online templates handle custom fonts by converting them into vector outlines instead of embedding font data. Visually identical. But underneath, the text is now a collection of shapes. This is one of the biggest reasons why dual-submission strategies are now required for technical roles.

When an ATS encounters these shapes, it runs OCR to convert them back into text. The result:

What you wrote: "5 years of experience with React and TypeScript"

What the ATS reads: "5years ofexperience wxth Reac7 and TypeScripl"

Test this yourself: open your PDF, select all text, copy it, and paste into Notepad. If it is garbled, that is exactly what the ATS sees.

The Data Integrity Gap

Recruiters rely on automated filters. If the ATS reads your "2023" as "2O23" (using the letter O instead of the number zero), you might be filtered out of a search for candidates with recent experience. Subtle glitches in OCR create massive gaps in your data integrity. Web profiles provide the raw text, ensuring 100% accuracy for every tool that reads them. This accuracy is vital for your visual hierarchy to remain effective.

Messy Background Layers

Designed resumes use background colors and sidebars as separate layers. The parser does not understand layers. It reads characters in coordinate order regardless of which visual layer they belong to. This is another reason static PDFs are increasingly unreliable.

A sidebar heading "Experience" next to a job title "Senior Software Engineer" can become:

"ExSenior Software Engineerperience"

Characters merged based on vertical position, not visual grouping.

Semantic Tags for the Win

Web profiles use semantic HTML tags. This tells the reader (and the machine) exactly what is what. An h1 tag is always a title. A li tag is always a list item. This eliminates the "coordinate guessing game" that PDF parsers have to play. It is the difference between reading a recipe and trying to guess one from a picture of a meal.

Common Questions

Do big tech companies use OCR on resumes?

Almost all of them do. They handle thousands of applications per day, and manual data entry is impossible. If their machine cannot read your file, you are essentially invisible.

Is an exported Word document better than a Canva PDF?

Usually, yes, because Word tends to preserve text layers better. However, it still lacks the screen-responsiveness and brand-authority of a custom web profile.

How can I check if my current PDF is machine-readable?

Try to copy a paragraph and paste it into a plain text editor. If the words are joined together or letters are replaced with symbols, it is failing the machine test.

Further Reading