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crmx123 Author

Level 1

4 points

PDF annotate app with no sidebars from underscan

I use my IPad Pro and when I display my image using HDMI or VGA using a projector, I get black sidebars on the left and right side due to underscan.

Is there a PDF annotation app that will automatically compensation for the change in aspect ratio? (Like the Apple photos).

I have tried PDF expert, noteshelf and adobe reader without success.

The projector is often fixed in the ceiling in the classroom and I do not have access to change the zoom/keystone on the projector itself.

There must be others that have experienced this, and I am hoping there is a solution.

iPad Pro, iOS 13

Posted on Nov 10, 2019 3:02 PM

Top-ranking reply

QuickPost

Level 10

103,365 points

Posted on Nov 10, 2019 3:22 PM

Hello,

This is not due to underscan. iPad’s display aspect ration is 4:3. Most displays you connect your iPad to will have an aspect ration of 16:9. iPad and its software is not designed to display with a 16:9 aspect ratio. The reason you see these black bars on the left and right is due to iPad displaying the largest picture it can display which most often will just be what is seen on the iPad. The only exceptions are multimedia applications that have been specifically designed to display their media content in their full resolution, such as Photos or TV. There is nothing you can do to resolve this as iPad is not designed to work this way.

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PDF annotate app with no sidebars from underscan

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