Several of you have reported that PDFs seem to open inconsistently on iPads under iOS8. I’ve now tracked down the root cause of this issue,
but it’ll be getting on for a couple of weeks before Apple approves my fix. In the mean time, there is a simple workaround for this issue: make sure your iPad is always in portrait orientation before opening the PDF file, and then switch back to landscape after it has opened if you so wish. Apologies for the inconvenience, but hopefully this will be enough to get you praying in the mean time whilst a proper update is released.
Update: A fix for this is now live in the App Store – update PrayerMate to resolve this issue