See what changed.

Compare two PDFs with semantic text changes and pixel-level visual differences. Review side by side, overlay versions, isolate changed regions, ignore page furniture, then export an auditable comparison report — without uploading source documents.

Original / older PDF

Drop or choose the baseline version.

No file selected

Password (optional)

Revised / newer PDF

Drop or choose the version to review.

No file selected

Password (optional)

Compare

Pixel sensitivity

Visual quality

Ignore margins

Revised page offset

Ignore repeated headers/footers

Ignore colour-only shifts

Auto-align small page shifts

0Page pairs

0Text changes

0Visual regions

0Added pages

0Removed pages

0%Changed pixels

Choose two PDFs or load the demo.

Pairof 0

Load two documents to begin.

Text comparison

No page selected.

Hide unchanged lines

Semantic text changes appear here.

Current page

No results.

Review notes

Pixel comparison is sensitive to rendering differences. Use the sensitivity, grayscale and margin controls to reduce noise. Scanned PDFs can be compared visually; run Tool #232 OCR first if you also need semantic text changes.