What are these arrows supposed to do?

Hi there,

Could someone please tell me what these arrows do? I tried looking around the forum and in the FAQ, but could not come up with an answer.

Thanks!

They force fit to width or fit to height as opose to the default fit mode which tries to fill the screen.

You can control the auto scrolling when tapping the screen by using: Fit to widht + adusting the zoom level.

Thanks! This didn’t seem to work on my iPhone (which is why I didn’t know what they were)but works fine on an iPad.

Ok, I will check the problem in iphones.

That’s awesome, thank you!