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$pageTitle = "Seo Content - PDF AI Toolkit"; $toolsActive = true; $currentTool = "seo-content"; $pageSpecificHeaders = << EOT; include 'template-header.php'; ?>

Compare PDFs

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Q: How are differences detected?

A: Pages are rendered to images and compared pixel-by-pixel with an adjustable tolerance to reduce noise from anti-aliasing.

Q: Can I compare PDFs with different page counts?

A: Yes. Missing pages are shown as blank, and you can still review the differences for pages that exist.

Q: Is my data uploaded?

A: No. The comparison runs locally in your browser using pdf.js, so files never leave your device.

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