Using Snapshot to compare drawings | Revu 2017 & below

Sometimes there are instances in which you only want to compare a small area of two different drawing revisions. The most widely used features in Revu for comparing PDF drawings is Overlay Pages and Compare Documents, but these features are designed for comparing full size drawings, rather than a small area. So, what can you do? Use the Snapshot snapshot tool instead. The Snapshot tool is another great way to compare drawings, and gives you more flexibility and control when comparing small areas.

To compare drawings using Snapshot

Note: When using Snapshot to compare a small area of a drawing, it’s best to use two black and white drawings.

  1. Open Drawing 1.
  2. Click the Snapshot snapshot button and draw a rectangle around the area that you want to compare.
  3. Open Drawing 2.
  4. Press Ctrl+Shift+V to use Paste in Place and paste the Snapshot in the same location as Drawing 1.
  5. Select the Snapshot and click the Change Colors button in the Properties properties tab.
  6. Click the Source Color button and then click the black color tile.
  7. Click the To button and click the red color tile. A second row of Source/To buttons will display.
  8. Click the Source color button in the second row and click white.
  9. Click the To color button in the second row and click no color, which is the white tile with the red slash though it.
  10. Click OK.
  11. Change the Opacity in the Properties properties tab to 60 or 70.

What I’ve done here is copy a Snapshot markup from one drawing, pasted it on the other in the exact same location, and then changed the color properties to visually compare the two. Lines and text that are the same in both drawings will display as a dark shade of red. Lines or text that are only in Drawing 1 will appear as a light red color, and lines or text that are only in Drawing 2 will be solid black.

Paste in Place, Ctrl+Shift+V, used in the instructions above, allows you to paste the Snapshot in the same exact location as the original drawing. Alternately, if you use Paste, Ctrl+V, the Snapshot will paste at the cursor location, therefore Paste in Place is recommended. If the two drawings are not aligned after using Paste in Place, Snapshot allows you to make adjustments easily. Since a Snapshot is a markup, you can adjust the alignment of the two drawings by clicking on the Snapshot and dragging it to the correct location, or you can click on the yellow handles in the corners of the Snapshot to rescale it to the appropriate size.

Even though this example focuses on comparing a small section of a drawing, this process can also be used to compare an entire sheet.

Learn more about using the Snapshot tool and creating Tool Set symbols using Snapshot.


Sometimes there are instances in which you only want to compare a small area of two different drawing revisions. The most widely used features in Revu for comparing PDF drawings is Overlay Pages and Compare Documents, but these features are designed for comparing full size drawings, rather than a small area. So, what can you do? Use the Snapshot tool instead. The Snapshot tool is another great way to compare drawings, and gives you more flexibility and control when comparing small areas.
To compare drawings using Snapshot
When using Snapshot to compare a small area of a drawing, it’s best to use two black and white drawings.

Open Drawing 1
Click the button and draw a rectangle around the area that you want to compare.
Open Drawing 2
Press Ctrl+Shift+V to use Paste in Place and paste the Snapshot in the same location as Drawing 1
Select the Snapshot and click the Change Colors button in the tab.

Click the Source Color button and then click the black color tile.
Click the

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