Export to PDF from Writer: text boxes resizable in PDF

I want to export a PDF from writer, with text entry boxes. I want to make the size (rows) of the text boxes alterable, so that as more text is added, the text entry box can be made deeper and deeper. This can be automatic, or by the user.

Any help appreciated.


Hi Nick, I have this exact requirement! Did you ever find out, or can anyone else help?

Thanks, Andy

(My Version: / LibreOffice Community
Build ID: 8a45595d069ef5570103caea1b71cc9d82b2aae4
CPU threads: 8; OS: Mac OS X 10.15.6)