HelIo, I have an Attachment button but I would like the attachment name to show in a text box. The attachment is mandatory but I'm not sure how to do this. Can you help me please? Thank you. JB.

There are a couple of ways to do this. For example, put this code in a folder level script.

this.getField("AttachName").value = dataObjects[0].name;

This code puts the "name" of the first attachment into a field named "AttachName".

You'll need to change the field name to match the one on your PDF.