From the research I have done there is a serious problem on ipads with opening pdfs and other attachments and thus saving them in either iBooks or Dropbox. Our specific problem is:
In iPad Mail, we sometimes get a generic down arrow instead of the pdf or Word or Excel icon, which when clicked shows a brief spinning circle then nothing. Ocasionally the % of what is downloading is shown then still nothing happens.
For us, some attachments open, some don't. On the same ipad we can open the same attachments which don't open in Mail, by going via Safari to Gmail online (then can save into iBooks or Dropbox by clicking somewhere near the top of the screen). Or just using by the Gmail app (but then you can't save attachments to iBooks or Dropbox). Or by forwarding them back to the same email account, still in Apple Mail, and then we can save into iBooks for pdfs or Dropbox for pdfs and Microsoft documents.
Anyhoo, I've read hundreds of comments about this problem and similar ones to it now. The workaround solution that works for us is either
- open in Safari using web mail, or
- forward the email back to yourself or
- use the Gmail app (but then you can't save attachment)
and then lo and behold you can open the attachments and (1 & 2 only) save them to iBooks and/or Dropbox.
Personally, I have a hunch that the problem lies somewhere on the lines of (in iPad Mail obviously) if the attachments are not opened on first viewing of the email for some reason, (perhaps you were connected to the internet, downloaded the mail body, went offline and opened Mail, but then couldn't view the attachmentsbecause you need to be online to download them as it's not done automatically), then afterwards Mail is unable to restart what is effectively an interrupted download session.
Either that, or possibly it's a problem Mail has communicating with Gmail, regarding whether an attachment has downloaded or not (so it could be a Google problem). We only use Gmail - I can't be bothered to test this with another mail service as someone else will have tested this already.
For us this problem is not specific to pdfs - it also affects doc docx xls and xlsx attachments - and indeed probably all attachments that are not displayed inline in the body of the email.
It's a 2012 wifi ipad (3?) - the latest one - purchased a month or so ago, with all latest software updates and not running many apps. And no I'm not going to wipe the ipad and reinstall everything. And force restart fixes nothing. I imagine Apple engineers are working on a software solution to this and eventually they will fix what seems very likely to be an Apple Mail or Apple pdf problem. Anyone working with tech support in the 90's will be familiar with the old
0. delete all preferences
1. zap the pram,
2. unplug everything and restart,
3. reinstall the system.
routine
Where 1, 2 and 3 invariably did nothing helpful but took several hours and made you think twice about contacting tech support again. The problem was always buggy software, and solutions eventually came with updated software. So I have no patience for such idiocies any more.
FWIW, the "genius" that tried to help us at the Nice, France store had little knowledge of ipad mail attachments and was more intent on trying not to lose face (which we really couldn't care less about), than trying to solve the problem, or remaining polite.