Compare visually

See layout and picture changes with an overlay and a visual difference map.

Processed on your device

Before PDFChoose the before PDFDrop a PDF here, or browse. Up to 50 MB.

After PDFChoose the after PDFDrop a PDF here, or browse. Up to 50 MB.

Pixel toleranceLower values show smaller color differences.

Files stay on this device. Up to 40 pages across both PDFs; pages pair by their number.

Pages are paired by page number and aligned at the top-left at the same physical scale. Pink marks pixels that differ above the selected tolerance. Fonts, antialiasing, page sizes and rotation can produce differences. This is a rendered-image comparison, not a semantic text, metadata, attachment or signature comparison. Rendering is limited to 108 dpi and 1.5 megapixels per page pair; very small changes can be missed.