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PDF Tools · Checker

Audit any PDF in seconds

Check a document across 7 accessibility categories and get a clear 0-100 score - with AI-suggested alt text for every image, ready to apply.

7 categories 0-100 score AI alt text
app.equalweb.com/pdf/checker
93/ 100
Accessibility score
annual-report.pdf
Compliant - WCAG 2.2 / PDF-UA
Document100
Page98
Forms92
Alt text95
Tables90
Lists100
Headings96
AI image descriptions

AI-generated alt text for every image

Missing alt text is the most common PDF failure. The Checker reads every image and suggests accurate, descriptive alternative text - you review and apply it in a click, instead of writing it from scratch.

Apply fixes automatically with AI Auto-Remediation ->

Suggested alt textBar chart showing 2025 revenue up 24% year over year, with Q4 the strongest quarter.
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7 categories, one score

From AI tagging to expert review - everything PDFs need

The Checker inspects the structures screen readers and assistive tech rely on - and tells you exactly where each one stands.

Document & page structureLanguage, title, tags and a logical, tagged reading order.
Headings & listsProper heading hierarchy and correctly marked-up lists.
Image alt textEvery image carries meaningful alternative text - AI-suggested.
Table headersHeader rows and cells associated so tables read correctly.
Form fieldsLabels and tooltips so every field is announced and fillable.
Scored & shareable reportA 0-100 score and a report you can share with your team.
FAQ

PDF Accessibility Checker - frequently asked questions

How do I check if a PDF is accessible?
Upload the document to EqualWeb's PDF Accessibility Checker. It audits the file across 7 categories - Document, Page Content, Forms, Alternate Text, Tables, Lists and Headings - and returns a 0-100 accessibility score. Each rule is marked Passed, Needs Review or Failed, so you can see exactly where the document stands before deciding whether to fix it with AI or experts.
What does EqualWeb's PDF Accessibility Checker actually check?
EqualWeb's PDF Accessibility Checker inspects the structures screen readers rely on: document language, title and tags, a logical tagged reading order, heading hierarchy, correctly marked-up lists, alternative text on every image, table header associations, and labeled form fields. It also flags items like color contrast for review, then rolls everything into a single 0-100 score you can share with your team.
What do Passed, Needs Review and Failed mean in the PDF Checker report?
Passed means the rule is satisfied. Needs Review means EqualWeb's AI could not fully verify the rule - items like logical reading order and color contrast - so a manual check is recommended. Failed means the rule is violated and the document needs fixing. The report totals each status per category, so you know how many issues were resolved and how many still need attention.
Does the PDF Checker write alt text for images?
Yes. EqualWeb's PDF Accessibility Checker reads every image in the document and generates a suggested alternative text description for each one. The report lists each image with its page number and the AI-written description, and you can review, edit and apply the suggestions instead of writing alt text from scratch. Missing alt text is the most common PDF accessibility failure.
Does the PDF Accessibility Checker fix the issues it finds?
No. The Checker is an audit-only tool: it reports issues and scores the document without changing the file. To apply fixes, pair it with EqualWeb's AI Auto-Remediation, which tags headings, tables, alt text and reading order automatically, or with Expert Manual Remediation for complex documents. A Checker report also ships with every remediation, so you get a before and after comparison.
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