It's about an EPUB presentation that has to work locally on an iPad without an internet connection. The challenge for me is to link from EPUB to PDF files that are stored locally on the iPad.
Does anyone have any idea how to do that?
Thank you Derek,
i know in5. The Question is – is there another posibility to make it? I mean without in5?
Where would you even store files "locally"? IPads don't have a central store of files, just in app. What app would you use and how would the files get into it?
I have the following task: In an EPUB presentation that is run on an iPad with iBooks, one should be able to use the "Open File" command to open a PDF file wich is stored on the iPad, e.g. in the "On My iPad" directory.
That should be possible, right? Maybe through a relative link?
The iPad is very seriously locked down, with complete inter-application isolation. It makes it impossible to do many things taken for granted on other systems. The "Files" app does not provide a file store, nor show one, so far as I know, it just presents the illusion that you have one. (Update: according to https://en.wikipedia.org/wiki/Files_(Apple), on the iPad there IS a local file store in the Files app, but ther is NONE on iOS).
I may be wrong, but I suggest you do some deep study of this. In general files can't even link to other files stored in the same app.
Thank you for this valuable information. The file distortion on the iPad actually seems to be special.
Then I'll try to find another way. Maybe with in5.
Thank you for your advice. That's how I do it right now. But the customer explicitly wants a solution without an internet connection. The PDF files are to be saved locally on the iPad so that the customer can update them himself and access the PDFs from the EPUB. I guess I would have to program some kind of app for that.