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Upload two PDF files side-by-side to track differences, pages count mismatches, and catalog headers edits client-side.
When dealing with contract revisions, legal documents, or project drafts, identifying even the smallest changes between two versions is critical. Our Compare PDF tool offers a side-by-side comparison workspace that allows you to load two different PDF documents and highlight differences. It parses the page layouts, text operators, and visual structures to make auditing changes fast, reliable, and straightforward.
Security is our utmost priority. Because legal and business agreements contain highly sensitive terms, our tool compares the files entirely inside your browser. No data is transmitted to external servers. It runs coordinate checks, aligns pages, and highlights additions or deletions in contrasting colors so you can review changes instantly.
Step 1: Select and upload the first PDF (Document A - Original Version) in the left upload panel.
Step 2: Select and upload the second PDF (Document B - Modified Version) in the right upload panel.
Step 3: Choose your comparison mode: choose side-by-side layout or text difference highlight.
Step 4: Review the highlighted changes: additions are highlighted in green, deletions in red.
Step 5: Scroll through pages simultaneously and zoom in to verify small formatting details.