Compare the text of two PDFs
Add the original and the revised PDF. The tool extracts each document's text locally, aligns the lines, and lists what was removed and added, with the page it came from.
Original PDF
Revised PDF
How to use it
- Add the original PDF (left) and the revised PDF (right).
- Review removed and added lines with their page numbers.
- Download the report as a UTF-8 TXT file if needed.
Limits & formats
Two text-based PDFs, each up to 50 MB, 100 pages and 20,000 extracted lines. The comparison is line-level on extracted text: reflowed paragraphs can show as whole-line changes even if visually similar, and images, layout and formatting are not compared. Changed passages appear as a removed line plus an added line. This is a programmatic text comparison — not a visual, legal or compliance conclusion.
Privacy
Your PDFs are processed locally in this browser tab. YYSI servers never receive your files. Only anonymous usage counters (tool name, success or failure, rough size range) are recorded.
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