Compare two PDFs visually (pixel differences)
Compare two versions of a PDF page by page and see the differences highlighted in red. Unlike text comparison, this also catches moved images, changed layout and colour changes. Free and local.
Original
Drop here or click to choose
Files stay on your device — nothing is uploaded
Modified
Drop here or click to choose
Files stay on your device — nothing is uploaded
Renders both PDFs page by page and highlights pixel differences in red. Unlike text comparison, this also catches moved images, changed layout, different fonts and colour changes.
Your file is processed in your browser and never uploaded.
How does it work?
- 1
Choose two PDFs
Drag the original and the modified version here.
- 2
Compare
Both PDFs are rendered and compared pixel by pixel.
- 3
Review the differences
Changed areas are highlighted in red per page.
Frequently asked questions
How is this different from text comparison?
Text comparison only sees differences in the text layer. This visual comparison catches everything that looks different: moved elements, different fonts, changed images and colours.
Are my files uploaded?
No. Everything happens in your own browser. Your file never leaves your device and is not stored anywhere.
Is it free?
Yes, completely free and without watermark, ads or account.
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