The seller handed me a list of preferred terms this morning and the buyer’s offer arrived an hour ago. I need a quick …
Open Adobe Acrobat on your computer.
Go to Tools and select Compare Files.
Click Select File under 'Compare' and choose your first PDF (the older or original version).
Click Select File under 'With' and choose your second PDF (the newer or revised version).
Click Compare to start the comparison.
Review the results in the comparison summary and use the side-by-side view to examine highlighted differences.
Best practiceFor best results, avoid using scanned PDFs as input files, as text recognition may be inconsistent.
You can filter the comparison results to focus on text, images, or formatting changes for a clearer review.
This runs in the Acrobat app - there is no separate API for this task.
When you choose 'Compare text only', Acrobat will ignore any pictures or graphics in your documents. It will only look for changes in the words. This can make the comparison faster if you only care about text changes.
Compare Files fails with security settings because those settings prevent Acrobat from making changes or analyzing the document's content. To compare, Acrobat needs full access to both files. You must remove the security protection from both PDFs before you can compare them.
When you compare signed document versions, Acrobat will show you all the changes made after the document was signed. This is very useful for legal documents or contracts. It helps you see if anyone tampered with the document after it was officially approved and signed.
| Mode | What it does |
|---|---|
| Autodetect | Acrobat tries to figure out the best way to compare your documents automatically. It's good for general use. |
| Reports/Spreadsheets | This mode is best for documents like financial reports or data tables. It focuses on finding changes in numbers and structured data. |