Compare two PDFs
See what changed between two versions: removed words in red, added words in green, side by side, saved as a PDF.
Differences can be missed, or marked where there are none. Comparing by text uses the text stored in the PDF, so choose appearance for scans. If a page was added or removed, the pages after it are compared out of step.
Your files are never sent anywhere.
How to use it
- Drop the old version first, then the new one (use the arrows to swap them).
- Choose to compare the text, or the appearance (for scans and drawings).
- Press Run. Download the side-by-side PDF and the text file listing every change.
Questions and answers
What does the result look like?
One landscape page per page pair: the old page on the left, the new one on the right, with a header counting the changes. Removed words are shaded red, added words green.
The pages moved; does it still work?
Pages are compared by number, so an inserted page shifts everything after it. The text file still lists the words that differ; a visual comparison of shifted pages shows everything as changed.
Can it compare scans?
Choose Appearance: the two pages are laid over each other and the areas that differ are marked. To compare word by word, run Text recognition (OCR) on both files first.
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