When opening the PDF fullscreen we simply hand it off to the operating system. SkyDemon is not involved in the presentation or interaction with the PDF. It should be exactly the same when viewing it from an email. So I'm afraid I have no clue except to say that an older device will always struggle more.

+x

Tim Dawson - 2/3/2017 11:09:11 AM

Hi Tim,
‌

Mike, do you mean opening the PDF fullscreen, or opening its georeferenced map embedded in our chart?

Hi Tim,
very attentive of you, thanks.
Indeed, the problem only occurs when opening the PDF fullscreen, not when I open the embedded chart.
Worst of all charts (which I found up to this moment) is ‌‌‌the "aerodrome Chart" of EDDH. It's impossible to open the fullscreen chart, only the embedded.
The arrival chart is better. It's possible to open the fullscreen chart but by zooming in the problem occurs.‌
I wrote, when I'm sending the fullscreen chart‌ by mail I have no problems.
Perhaps you will find out the reason.

Many thanks.
Regards,
Mike‌‌‌‌‌

+x

Tim Dawson - 2/3/2017 11:09:11 AM

Hi Tim,
‌

Mike, do you mean opening the PDF fullscreen, or opening its georeferenced map embedded in our chart?

Hi Tim,
very attentive of you, thanks.
Indeed, the problem only occurs when opening the PDF fullscreen, not when I open the embedded chart.
Worst of all charts (which I found up to this moment) is ‌‌‌the "aerodrome Chart" of EDDH. It's impossible to open the fullscreen chart, only the embedded.
The arrival chart is better. It's possible to open the fullscreen chart but by zooming in the problem occurs.‌
I wrote, when I'm sending the fullscreen chart‌ by mail I have no problems.
Perhaps you will find out the reason.

Many thanks.
Regards,
Mike‌‌‌‌‌

Mike, do you mean opening the PDF fullscreen, or opening its georeferenced map embedded in our chart?

The same problem with a Samsung Galaxy Tab s2.

Best‌ regards
Bernd‌‌

The same problem wichtig a Samsung Galaxy Tab s2.

Best‌ regards
Bernd‌‌

Hi Tim,
at first many thanks for your answer.
For my opinion, it's not a question of the size of the file. I can handle very more large pdf-files and have no problems. When I send the pdf-file from EDDH (arrival chart) per mail and open it on my iPad mini 1, there is no problem. I can zoom in and out and move the map, no problems. The problem only occurs, when I open the file from SkyDemon and zoom in very strong. There must be a difference between opening a pdf-file  e.g. from ADOBE or from SkyDemon. Perhaps you could be so nice and think over this once more.
‌
Many thanks,
Mike‌‌‌‌

+x

Tim Dawson - 2/2/2017 10:33:27 AM

There are some very large and complex PDFs published by DFS, particularly the VFR terminal charts. On iOS it's the operating system which performs the actual PDF rendering (it's very good at it) so if it cannot cope, then unfortunately there's nothing we can do from the SkyDemon side and a new tablet may be on the cards. On the plus side, you'll be delighted with the performance improvement coming from an original iPad Mini to the latest one.

There are some very large and complex PDFs published by DFS, particularly the VFR terminal charts. On iOS it's the operating system which performs the actual PDF rendering (it's very good at it) so if it cannot cope, then unfortunately there's nothing we can do from the SkyDemon side and a new tablet may be on the cards. On the plus side, you'll be delighted with the performance improvement coming from an original iPad Mini to the latest one.

Hi,
‌
‌I too am still using an iPad Mini 1. I just checked and I have the identical behavior.
‌
‌If I copy the PDF to iBooks, iBooks actually crashes when trying to open it -- so I guess the black, grey, black, loading... cycle we see in SD is just SD repeatedly trying to open the PDF.
‌
‌Unfortunately, this looks like we have to shop for a new iPad in the near-to-mid future..
‌
‌Best regards
‌Matthias
‌
‌EDIT: Low memory warning/crash in the iPad log...
‌
‌