On 02/02/2021 00:51, Dave Plowman (News) wrote:
Got a form sent as an email attachment that I had to fill in and return by
email. In PDF format. Never seen this before and had thought most (free)
progs that can load a PDF are read only. Including Acrobat Reader, which
is my default app for PDFs.

To my surprise, a caret appeared in the dialogue boxes so I could fill
them in and save it as a PDF.

I recently received a form like that from my GP.