Christine Andersen wrote:
If the client insists on a PDF, and you have Adobe Acrobat (not just the free Reader, but a program you have to pay for), then it is possible to mark up the text. Either you can delete and type in corrections that appear in a blue frame when you click in the text,
or you can do it a more laborious way with 'yellow notes'.
(See HELP in Adobe Acrobat for details.)...
Just wanted to mention that there is a trial version of Acrobat that everything.