I like to create an online form that allows me to enter Text into some
fields and select some checkboxes. When I print, only the text associated
with the checked checkboxes is supposed to print, but not the checkboxes.
This is how the document template (form) should look like (fields are shown
with brakets):

[address]

Salutation [lastname],

Some text ...
[x] text block 1
[  ] text block 2
[x] text block 3
more text ...

After entering the address and the last name I want to check the text blocks
I want to include and then print the document. In this case text block 2 is
not supposed to print and I don't want to see the checkboxes printed either.
It would be good to see the text blocks so I know which to check.

I don't know how to realise that text blocks are included or excluded and
how to suppress the checkboxes.

Is this doable? Are there examples I can look at to learn how to do it?