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Acrobat for Windows and Mac: User Interface

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Phantom lines in ruler when moving cursor

Moving my cursor throughout the document leaves phantom lines in the rulers. This seems to have begun with recent app upgrade (current version: 2026.001.21367 64-bit). See 3 photos attached: one with no movement, one with movement down & right, one with movement down/right/up/left. The phantom lines obscure the ruler measurements. This appears to be a bug in the app. Older versions do not present the issue, but I am unable to downgrade.

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Anthony H shared this idea  ·   ·  Report…  ·  Admin →
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  • Pete commented  ·   ·  Report

    My error. .21431 must have been the one I was upgrading from. It is /21483 that fixes it for me. Apologies for any confusion.

    Of course - why did it take them so long. Why didn't they tell us they had fixed it instead of leaving it to us to find and why no apology!

  • Graphicsquirrel commented  ·   ·  Report

    Updated and no more lines in version 26.1 (.21483). The update was a little lengthy, though.

    Thanks to those who worked to get our rulers working again and to everyone who let Adobe know how important the small things are!

  • Pete commented  ·   ·  Report

    Fixed in .21431 also.

  • Anthony H commented  ·   ·  Report

    This issue resolved for me in the current version of Acrobat (26.001.21483)!

  • Grigsbe commented  ·   ·  Report

    Ditto with what everyone else is saying!

  • Jason Williams commented  ·   ·  Report

    Same issue, lines showing up in rulers making them unusable.

  • Steve Pierobon commented  ·   ·  Report

    I am having the same issue with the latest update. Phantom lines show up in rulers when moving the mouse.

  • Hal Grunwell commented  ·   ·  Report

    We use these rulers all day, a fix would be greatly appreciated.

  • Odell commented  ·   ·  Report

    Adding my name to the list of impacted users. The rulers are useless now.

  • E Mayercin commented  ·   ·  Report

    This is awful. I use the rulers for forms and this is stopping my work.

  • Hal Grunwell commented  ·   ·  Report

    Can confirm the same issues on Windows 11 machines. Documentation submitted to support.

  • Doug Whittier commented  ·   ·  Report

    I am having the same issue...

    Couple days ago (today's date 04/03/2026), my Acrobat Pro started creating weird lines withing the ruler when I move the mouse over the document. The more I move over the document, the more lines, until they completely saturate the ruler beyond recognition. I uninstall Acrobat Pro through the Creative Cloud Desktop and reinstalled; and it was working fine for a couple documents but has now returned. I do not have grid lines enabled, any ideas…?

    I have included 3 pictures…

    First picture is when I open the document, everything is normal.

    Second picture, just a quick movement of the mouse over the document, weird lines are starting to appear on the ruler.

    Third picture, continuing to move the mouse over the document (no clicking, just scrolling) and it completely saturates the ruler beyond recognition.