The best way to align drawings with Overlay Pages | Revu for Mac 2

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How to align your drawings

To overlay documents, select the files you want to compare, choose three alignment points in each drawing, then use Overlay Pages to create a new file with separate layers. To ensure your alignment points accurately overlay those files, enable Snap to Content , and choose the alignment points in correct order, as described below:

  1. Add the files you’re comparing to the Overlay Pages dialog box:
    1. If the documents are open, go to Document > Overlay Pages . The dialog box will automatically list the files when it opens.
      If you have additional files open, you can add them by clicking Add Open Files.
    2. If the files aren’t open, go to Document > Overlay Pages and click Add in the dialog box. This lets you locate and select the first of the files you want to compare. To add the rest of the documents, click Add again and repeat the process for each file.
  2. Choosing Your Alignment Points:
    When setting alignment points, it’s important to choose the same three points in the same order for each drawing. To ensure accuracy, switch on Snap to Content from the Status Bar (Command-Shift-9).

    1. If Snap to Content is enabled, click Align Points in the Overlay Pages dialog box, and select three locations in the first drawing. The next drawing will open, allowing you to select the same three points in the same order.
      Ideally, you should select the alignment points within the actual drawing content instead of clicking three corners of the surrounding border.
    2. Click OK.

Once the process is complete, a new and properly aligned file called “Overlay” will open.


Overlay Pages compares two or more PDFs by stacking them over each other. Learn how to choose the best alignment points to compare drawings.

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