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Compare Drawings (iOS)

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To compare drawings in the Drawings tool on your iOS mobile device.

Things to Consider

  • Required User Permissions: 'Read-only' and above on the project's Drawings tool.
  • Tip! Swipe up to view older revisions of this drawing


  1. Navigate to the project's Drawings tool on an iOS mobile device.

Compare Drawing Revisions

  1. Tap the drawing you would like to compare.
  2. Tap Compare Drawings (2018-02-02_15-22-26.png).

    view drawings horizontal.jpg
  3. View the comparison of the two most recent drawing revisions of the sheet you selected. 
    Note: Lines added will be highlighted in blue. Lines removed will be highlighted in red.
  4. To compare the drawing with a different revision, tap the drawing's header.
  5. Tap Compare with different drawing.

  6. Tap the desired revision. 

Compare with Another Drawing

  1. Tap the drawing you want to compare.
  2. Tap Compare Drawings (2018-02-02_15-22-26.png).
  3. Tap the drawing's header.
  4. Tap Compare with different drawing

  5. Tap the desired drawing.
    Note: Your initial drawing is displayed in blue. The drawing with which you are comparing is displayed in red.

Compare Drawing Batches

  1. Tap the Drawing Set you want to compare. 
  2. Tap the drawing for which you want to begin viewing comparisons.
  3. Tap Compare Drawings (2018-02-02_15-22-26.png).
  4. Tap the arrows or swipe left and right view the next drawing in the batch and its most recent version.

  5. To return to the Drawings Tool, tap Exit Comparison.

Troubleshooting (realign sheets)

If your drawing appears to have every line highlighted in red and blue, your PDFs may have been shifted a few pixels when the revision was created (see example below).


compare drawings bad.jpg


  1. Tap the drawing's header.
  2. Tap Realign
  3. Drag or use the arrows to align the sheets until you align your drawings.
  4. Tap Done.

See Also

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