|Tools / Comparing and Merging Documents|
To compare two files side by side, open the Diff Files dialog from . Using the Browse for local file button open a file in the left side of the dialog, and the file you want to compare it to in the right side. To highlight the differences between the two files, click the Perform File Differencing button. The line numbers on each side help you to identify the locations of the differences quickly.
You can edit both the source and the target file. The differences are refreshed when you save the modified document.
The Compare Files Window
Adjacent changes are grouped into blocks of changes. This layout allows an easier visual identification and focuses on a group of related changes.