I realize this is subjective in nature and more opinion-based perhaps. I'm seeking "best practices" from experienced designers.
Hired to create a piece for a client using similar copy to what's on a web page.
While working through the piece, you find a number of copy errors. Mostly of the "spellcheck won't catch that" nature. Things like
to rather than
too, or a dollar figure is missing a digit, or the same name is spelled three different ways within the copy. You do correct all these in the copy you are using — even though you have made it abundantly clear to the client that you are not responsible for any typographical errors in any copy they provide.
Would you inform the client of these errors in their other materials and if so what's the best way?
Or, to avoid any negative impressions, should you simply ensure the copy you are working with is correct and not point out errors elsewhere?