Check ContrastPro
Check text-to-background contrast for WCAG compliance. Pro plan required. Secure and fast.
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How to Check Contrast
1
Upload your PDF
2
Contrast ratios are analyzed
3
View the WCAG compliance report
Frequently Asked Questions
1What contrast ratio is required?
WCAG AA requires 4.5:1 for normal text and 3:1 for large text.
Why Use ZiaSign's Check Contrast Tool?
ZiaSign's contrast checker analyzes text-to-background color contrast ratios throughout your PDF. Verify WCAG AA and AAA compliance. Identify low-contrast text that may be difficult to read for users with low vision.
Check WCAG AA and AAA contrast ratios
Identify low-contrast text elements
Per-page contrast analysis
Essential for accessibility compliance
Also known as: pdf contrast check · wcag contrast ratio · pdf accessibility contrast · text contrast checker
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