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Bowserb46
Participating Frequently
January 28, 2024
Question

Apparent dashed line on more or more edges

  • January 28, 2024
  • 1 reply
  • 570 views

I can't figure out what exactly causes this.  It's almost like the canvas is transparent and is a pixel or two larger than the image (which it isn't).  The attached is a snip from the upper left corner of an open psd file with several layers.  Flattening it makes no difference.  This doesn't happen all the time, but it does a lot of the time.  I've been using Photoshop since before the CS series--so a long time--but this I've only noticed the last couple or so years.

At first I thought maybe cropping generated the effect, but I've tested the same RAW file opening then cropping with and without deleting cropped pixels.  The dash line looks like the edge of an indicated transparent object, but I'm not sure at all.  Driving me nuts!  Doesn't show in a print, but it does when using Bridge to display full screen, so our study group using GoToMeeting, can see it.

Thanks.

Bill

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    1 reply

    Myra Ferguson
    Community Expert
    Myra FergusonCommunity Expert
    Community Expert
    January 29, 2024

    I generally notice the edge appears like that when the magnification is at an unusual amount such as 181% as opposed to 100%, 200%, or 50%.

      B
      Bowserb
      Participant
      January 29, 2024

      Wow, Myra.  I think you've found it.  In Photoshop, I typically use the "fit to screen" (Ctrl-0) to maximize the working size while still seeing the whole picture, I see "the dashed line".  When I use spacebar in Bridge to view full screen.  I usually see the dashed line as well.  HOWEVER, in Photoshop, if I just use Ctrl + or Ctrl -, the magnification goes to the next closest Photoshop standard--8.33%, 12.5%, 16.7%, 25%, 33.3%, 50%, 66.7%, 100%, 200%, etc.  In those standard magnifications, there is no dashed line.

      Now we know where it comes from.  All that's left is, "How can I get rid of it?"  Thanks, Myra.  Good detective work!

      c.pfaffenbichler
      Community Expert
      c.pfaffenbichlerCommunity Expert
      Community Expert
      January 31, 2024

      Does turning off »Use Graphics Processor« in the Performance Preferences (Photoshop > Preferences > Performance > Graphic Processor Settings) and restarting Photoshop have any bearing on the issue? 
      Does turning on »Deactivate Native Canvas« (Photoshop > Preferences > Technology Previews) and restarting Photoshop have any bearing on the issue?

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