Preview can't save images with highlight annotation

Discussion in 'macOS High Sierra (10.13)' started by ignatius345, Apr 17, 2018.

  1. ignatius345, Apr 17, 2018
    Last edited: Apr 17, 2018

    ignatius345 macrumors 68000

    Joined:
    Aug 20, 2015
    #1
    I've come across this bug on both my Macs, and it seems pretty easy to reproduce. Is anybody else having this issue?

    1. In Preview, open a screenshot you've taken (or really any image).

    Screen Shot 2018-04-17 at 11.16.23 AM.png
    2. in the Markup Toolbar, select Shapes. Add a highlight mask to the image (bottom left item in the dropdown).

    Screen Shot 2018-04-17 at 11.16.28 AM.png Screen Shot 2018-04-17 at 11.16.44 AM.png
    3. Try to save the image -- you get an error that it "could not be saved". Other annotations (like the arrow and circle I used above) seem to cause no problems, but that shaded mask box triggers this bug. Even if you try to duplicate the image and/or save it in a different format besides PNG, it won't work. Unchecking "alpha" in the save dialog also doesn't help.

    Screen Shot 2018-04-17 at 11.16.48 AM.png

    Seems like a pretty egregious bug for a high-profile MacOS app like Preview.
     
  2. prisstratton macrumors 6502a

    prisstratton

    Joined:
    Dec 20, 2011
    Location:
    Winnipeg, Manitoba, Canada
    #2
    I had not noticed this until you brought it up, but as you say, it is very easy to duplicate. Maybe you should report this through official channels.

    I typically use Skitch (older version 1.0.12) to annotate my screen captures.
     
  3. ignatius345 thread starter macrumors 68000

    Joined:
    Aug 20, 2015
    #3
    Yeah, I sent feedback through Apple's page. Generally Preview works for what I need -- or has until now.

    I sure hope the next MacOS release is more focused on fixing bugs...
     

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