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Visually diff two PDF versions side by side with pixel-level change highlights in your browser.
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Upload an original PDF and a revised copy. Each page is rendered with PDF.js and compared pixel by pixel so layout, text, and image changes show up in a highlighted diff panel.
Related tools: PDF Page Number Adder, PDF Redactor, and PDF Compressor.
Frequently Asked Questions
Does this compare text or appearance?
It compares rendered appearance, which catches formatting, image, and text layout changes even when the underlying text layer differs.
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