The right keywords don't matter if the parser can't read them.
A resume can have the right keywords, the right experience, and still fail an ATS scan because of how it is formatted. Upload yours to check for layout and structure issues that cause parsing failures.
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Visual document → structured text → candidate record.
When you upload a resume to an ATS, the system runs it through a text extraction engine. This engine converts your visual PDF or DOCX into structured data: plain text, split into fields like "name," "email," "work experience," "education," and "skills."
Extraction reads the document's text layer (not the visual layout) and applies rules to segment the text into sections. It looks for common headings ("Experience," "Education," "Skills"), date patterns, company names, and job titles, then maps the extracted text to fields in the candidate record.
This is where formatting problems surface. If the parser cannot determine where one section ends and another begins, or reads content in the wrong order, or if decorative elements inject garbage characters into the text stream, the resulting candidate record is garbled. The recruiter sees jumbled text or missing sections.
Not all formatting problems are equal.
Critical issues cause total parsing failures. High-risk issues degrade the result. Low-risk issues are mostly fine. Here they are in order of impact.
Image-based PDFs
If your PDF is a scanned image rather than a native digital document, the ATS extracts zero text. The entire resume is invisible to the system. Common with resumes printed and re-scanned, or exported from Canva as flattened images. To check: try selecting text in your PDF. If you cannot highlight individual words, it is image-based.
Text boxes and floating frames
Text boxes in Word and floating frames in PDFs create content outside the normal text flow. ATS parsers typically read the main stream first, then append text-box content at the end (or skip it). If your contact info or job titles are in text boxes, they may end up at the bottom of the extracted text or disappear.
Header/footer content
Content in document headers and footers is ignored by most parsers. The single most common formatting mistake: putting your name, phone, or email in the header because it "looks professional." The ATS never sees it. Your candidate record has no contact information.
Tables for layout
Tables are commonly used for multi-column resumes. Some ATS read them correctly (cell by cell, row by row), others merge all table content into a single block. The result depends on which ATS the company uses. Workday handles simple tables reasonably well. Taleo often struggles. If you're applying to multiple companies, tables are a gamble.
Columns without tables
Some templates create column layouts using tab stops or precise spacing. Visually identical to a table layout, but the underlying text of both columns is interleaved line by line. Parsers read this as a single stream, producing output where your job title is followed by an unrelated skill, followed by a date, followed by another skill.
Icons and graphics replacing text
Using a phone icon instead of "Phone:" or a LinkedIn icon instead of the URL means the ATS extracts the value but loses the context. Skill bars (visual progress indicators) are invisible to parsers — the ATS cannot see that the bar is 80% full. It just sees the skill name, if that.
Bold, italic, and underline
Standard text formatting is stripped during extraction but does not interfere with the text itself. Use bold for headings, italic for company names, underline for links. Formatting is lost in the ATS record but the text comes through correctly.
Color and font choices
ATS parsers extract text, not visual styling. Colors and fonts do not affect parsing. The one exception is white text on a white background (sometimes used to hide keywords) — some systems detect and flag this as keyword stuffing. Otherwise, your color palette is irrelevant.
Use the labels parsers expect.
ATS parsers segment your resume by section heading. When they hit "Education," everything below is mapped to the education field until the next recognized heading. Non-standard headings break the segmentation.
| Section | Reliably parsed | Risky alternatives |
|---|---|---|
| Work history | Experience, Work Experience, Professional Experience, Employment History | My Journey, Career Highlights, What I've Done |
| Education | Education, Academic Background, Education & Certifications | Learning, Where I Studied, Academic Life |
| Skills | Skills, Technical Skills, Core Competencies, Areas of Expertise | Toolkit, What I Bring, Superpowers |
| Summary | Summary, Professional Summary, Profile, About | Who Am I, Introduction, Hello! |
Frequently asked questions.
Common questions about this tool. Email hi@ajusta.ai if yours isn't here.
PDF is generally the safer choice for ATS submission. Modern ATS platforms (Workday, Greenhouse, Lever, iCIMS) parse PDFs reliably as long as the PDF contains real text and not scanned images. DOCX works well too, but formatting can shift across Word versions. If the job posting specifies a format, use that.
Not necessarily, but it increases the risk of parsing errors. Two-column layouts implemented with text boxes or frames often cause parsers to merge content from both columns into a single stream, jumbling your information. Single-column layouts are the lowest-risk option for ATS compatibility.
Yes. Many ATS parsers ignore or mishandle header and footer content. If your name, contact info, or LinkedIn URL is only in the header or footer, it may not be extracted. Always place critical information in the main body.
ATS systems extract text, not visual styling, so the font itself does not affect parsing. However, some decorative fonts use Unicode characters or ligatures that can cause extraction errors. Standard fonts (Arial, Calibri, Times New Roman, Garamond) are reliably parsed. Verify by copying text from the PDF into a plain text editor.
Ajusta identifies formatting issues and flags them with specific recommendations. The optimization process can restructure content for better ATS compatibility while preserving your visual design. It works at the content level rather than changing your template wholesale.
Check your resume's format.
Upload your resume; the checker flags the formatting issues that break ATS parsing and tells you how to fix each one. Free first run for new accounts.