Also make sure you do open in Acrobat Reader. The default PDF reader, and the PDF viewer in browsers, is NOT Acrobat Reader.
How did you deal with this? Is there something to be downloaded to help?
Apple and Google have killed Flash Player and also don't want to see (free) interactive PDFs that could replace (paid) Apps overshadow their App Stores.
I'm getting that picture. I tried downloading one of the Adobe IOS apps. My forms are going out to several hundred parents of four and five year olds. While this generation is pretty computer savvy, integrating this with the workflow is so convoluted that I can't imagine anyone doing it.
It's really a shame.
", integrating this with the workflow is so convoluted that I can't imagine anyone doing it." Good call. The days when we needed PDF forms are largely gone. Use HTML forms.
Is there a product you could recomment?
For HTML forms design? No, sorry. For HTML form deployment: should work in any major browser including mobile. Of course you need a SUBMIT of the form, and not an email or save.
You can look at Adobe Sign.
The answer I have found is to use Acrobat on IOS. The means of using it is not intuitively obvious but it works. You download it from the app store and then when you open the form in the email you click on the export button and select "Import to Acrobat".
However, I would urge retesting the form. I have found some nits, like extra spaces here and there, the break the form. But overall, this solution seems to work.