Compare PDF
Compare two PDF files for text differences and visual page changes in your browser. Spot revisions in contracts and reports with zero server uploads.
Your files stay in your browser. Nothing is uploaded.
Shortcuts: Ctrl+Enter run · Ctrl+Shift+C copy result · / search (use ⌘ on Mac)
Next steps
Done here? Use the Send to… menu on the result to carry it on to PDF to Text or Text Compare.
Free Online Compare PDF
Add two PDF files and see what changed: lines that were added or removed, and the differences painted red on the pages. Your files never leave your device. Open an old and a new PDF and see which lines were added or removed, with the changes painted in red on the page pictures.
How to compare two PDF files
Add the original first and the changed file second. Press Compare. The text differences are listed with the changed words marked, and each page that looks different is shown with the changes in red.
Reading the result
Green lines were added in the second file and red lines were removed from the first. Small differences in how the pages are drawn can show as tiny red marks in the picture comparison.
Common mistakes
- Adding the files in the wrong order: the first file is the original, so added and removed will be swapped.
- Comparing scanned PDFs by text: they have no words. Use the page pictures instead.