Detecting if a form is open on Mobile or Desktop

[Jean-Claude Tremblay]

I have a form that works perfectly on Desktop, but the submit button don’t works on mobile. I know it’s because I have a custom javascript inside that button and only a portion of javascript is supported on mobile device.

My question is: Is there a way to have something inside the PDF that can detect if the PDF is open on desktop versus mobile, and change the submit mecanism according to each?

Thanks!

[try67 · Accepted solution]

Not likely. If a script can't work, then it also can't detect that it's not working... The workaround is to create a warning message that's always visible by default and then use a script to hide it (for example, by making a field that's placed on top of it hidden). If the script executes, the message is hidden when the file is opened. If it's not, the message remains visible.

[Jean-Claude Tremblay]

Thanks!

I'll go with the workaround.

[Joel_Geraci]

app.platform will give tell you the operating system.

[try67]

I doubted it would work, but at least in Acrobat on an Android device it does return "Android" correctly...