Apple’s markup is kind of a mess.

Apple’s markup tool is something that I use probably on a daily basis, but there are some inconsistencies that you should be aware of, especially if you are using it cross platform between iOS and macOS. Here are just some scenarios that I tried and discovered how confusing things can get.

Let’s start with the Mac:

1. Markup for screenshots are permanent edits once you close out of the preview, whether you do the edit immediately after taking the screenshot by clicking on the small icon in the corner of the screen, or if you access it later from Finder.

2. Markup for a photo in the Photos app can always be edited and undone.

3. Markup for a pdf can always be edited and undone.

On the iPhone and iPad:

1. If you take a screenshot and edit right away by clicking the tiny screenshot, whatever markups you do that way will become a permanent “instance.” The only thing you can do after this point is revert back to the original image, or build upon the current markups you did. You cannot erase part of these markups.

   • For example, if you added a square and a circle to your markup, you can revert back to the original image with no markup, or you can build upon the square and circle. You cannot erase just the circle or just the square.

2. If you take a screenshot and flick it away, go to the photos app and then do the markup, you can edit, erase, and undo without any restrictions. Nothing is permanently engraved until you share the photo with the share card.

3. Markups for a pdf can always be edited and undone.

For cross platform talk:

1. Pdf files are pretty easily editable without much hassle on either platform. I have had no trouble when switching between the 3 platforms and was able to easily undo any changes seamlessly.

2. If you have iCloud photo library on, you can edit on an iPad and easily undo those edits on an iPhone, Mac, and vice versa. I was able to verify this on my iPhone and iPad, but since I do not have iCloud photo library enabled on my mac, I can’t confirm whether that works or not. My guess is that it does work.

The tip of the day is: if you are taking a screenshot of anything on iOS or iPad OS, swipe it away and access it from the photos app before you do any markups. This way you have more control in modifying your markups later on. For mac, markups for screenshots are permanent so be careful regardless of when you mark them up.