Compare Files

To compare files, PowerWeb displays a unique viewing page that shows the renditions of the selected documents. The two files can be two revisions of the same rendition file or two similar but unrelated renditions that you want to compare visually. The page allows you to see either of the renditions alone or a simultaneous view of both renditions that displays the additions, deletions, and unchanged objects between the two files in symbolic colors:

Green: additions
Red: deletions
Black: unchanged

Comparing renditions is supported by the built-in PDFTron viewer.
Graphics that have been moved but that are otherwise unchanged are considered by Compare as a deletion from one document and an addition to the other document.

PowerWeb Procedures

Select two documents that you want to compare.
Choose between two options:
- Right-click one of the documents, point to Document, and then click Compare Renditions.
  
  The Compare Renditions page appears.
- In the Document ribbon, in the Action group, click Compare Renditions.
  
  The Compare Renditions page appears.
Use the options of the page as described below.
Click Exit.

Compare Renditions page options
Option	Description
Keep in sync	When enabled and you switch from one rendition to the other, the viewing area remains the same so that you don't have to manually match the viewing area of one rendition to the other. When disabled, the viewing area is not synchronized so that you can easily view different areas of each rendition and switch between them.
Rev.<lowest>	Displays only the first rendition.
Rev.<highest>	Displays only the second rendition.
Difference	Displays both renditions simultaneously with the colors indicated by the legend in the bottom right corner of the page.
Refresh	Refreshes the current view to show any changes that have been made to renditions since you first opened the page.
Swap	Reverses the comparison order of the renditions.