Javasript Add text to text field after button click

[sestyduben@seznam.cz]

Hello, 

please, 

I have a Button and I need to fill in the Text Box with some text after clicking on it.

What code do I have to type in the action on the button when I want to insert text (may be in code) into the text box? 

Thank you very much. 

[Thom Parker]

You can read about what you need to do this here:

https://www.pdfscripting.com/public/PDF-Form-Scripting.cfm

You should also look at the online JavaScript Reference:

https://help.adobe.com/en_US/acrobat/acrobat_dc_sdk/2015/HTMLHelp/#t=Acro12_MasterBook%2FJS_Dev_Over...