Compare PDF

OrbitPDF extracts text directly from the vector stream of both documents and computes word-level and line-level diffs, color-coding additions in green and deletions in red. It also renders pages side-by-side and provides a draggable overlay slider to detect visual layout shifts.

Never. Text parsing, diff calculation, and visual rendering happen inside your browser. Your documents are not transmitted to an OrbitPDF server.

The overlay slider places both document pages on top of each other and lets you drag a vertical divider back and forth. This makes subtle layout changes, changed dates, altered signatures, and margin shifts immediately obvious.

Yes. In Text changes, use 'Copy diff' or 'Download .txt' to create a clean, timestamped report with before-and-after wording organized page by page.

OrbitPDF easily handles documents of different lengths. You can navigate through each page individually, and the diff report clearly marks newly added or deleted pages.