Working with Views > Other Viewables > Drawing View > To Compare Two Drawings or Images
  
To Compare Two Drawings or Images
Follow the procedure below to compare two images or drawings, including drawings saved to PDF.
1. In the Viewables tab, do one of the following operations:
◦ Right-click a drawing or image in the list, select Compare With, and then select the second drawing or image for the comparison.
◦ Select two drawings or images, right-click and select Compare Selected.
2. Use the following commands to adjust the display of the comparison results:
◦ Alignment commands—Updates the placement of two items. For more information, see To Align Images or Drawings.
◦ Setup commands—Displays the first item, second item, both items, or parts of the items in the results view. For more information, see To Configure the Setup for Image or Drawing Compare.
◦ Color options—Updates the color of the corresponding items in the graphics area. For more information, see To Set Default Color Options for Drawing and Image Compare.
* 
You can only set color options when the drawing or image is active.
◦ Background—Sets the threshold for comparing items. For more information, see Setting a Value for the Threshold.
◦ Page commands—Jumps to a new page of the drawing.