Office Word doesn’t count words in text boxes, which is a bit of a pain when, like me, you need to know the total number of words in a document to invoice your client. That’s why I was really happy to hear about colleagues’ ways of dealing with this on the TCR-D list. Pilar Bayle suggested using Total Assistant, which even counts words in PDF files, Kenneth Kronenberg recommended CompleteWordCount and John Stroman shared his method:
If you are using a PC,
 "Select all" and copy.
 Open Accessories > Notepad and paste (your text boxes should appear as plain text in Notepad)
 "Select all" and copy into empty Word document.
 Use the Wordcount function.