You would have to change the name of the field in the getField method to match the name of your signature field. In your case, you would want to set the mandatory property, just check the return value.

That doesn't work to determine if a signature field is signed. This previous thread might help: http://forums.adobe.com/thread/694165

Niall hasn't been around for a few months. You can get to the document here: https://workspaces.acrobat.com/app.html#d=SNB64dj4NEc4E2LhE-yISQ

All I know is they made this impossible a long time ago, like with Acrobat 5 or 6. I recall because I took advantage of it and never discovered a workaround.

You  should be aware that no iOS PDF viewers, including Adobe Reader, support dynamic PDF forms.

The property you're looking for is the "path" property: http://livedocs.adobe.com/acrobat_sdk/9.1/Acrobat9_1_HTMLHelp/JS_API_AcroJS.88.411.htmlHere's the documentation for documentFileName: http://livedocs.adobe.com/acrobat_sdk/9.1/Acrobat9_1_HTMLHelp/JS_API_AcroJS.88.389.html

If you Reader-enable the document in Acrobat, the user will be able to attach a file as a comment.

The best you can do is set up a submitForm action and use a mailto type URL. This will prompt the user to attach it to an email using their email client or save it to a file.

I've been assuming that you created the form in LiveCycle Designer. To tell whether it's saved as dynamic or static, open the form in LiveCycle Designer and select: File > Form Properties > Compatibility > Form TypeIt will indicate either "Dynamic XML form" or "Static PDF form". What does it say for...

Are your forms dynamic or static XFA forms? The answer to this question is important. As mentioned several times now, commenting is not possible with dynamic forms.