So say your superior at work asks you to edit her annual family newsletter, which details a year in which her mother, already stricken with Alzheimers disease, died of cancer. A month later, she would put down her favorite cat.
Do you really edit her annual family newsletter? Or do you just tell her it’s good and let her be happy with three different spellings for “Jonny” and someone “trying successfully to get out of bed”—when in, fact, successfully getting out of bed negates the “trying” part?
P.S.: It’s forty pages long.
I was gonna say that if it were me, I’d correct basic typos/grammar/etc. but at 40 pages long no one is actually going to read it except for maybe that one family member who always reads everything.
Edit: I mean I’d think she gave it to you to look over to find those sorts of errors that she might not be able to find due to being so emotionally close to the source material and you’re an impartial outsider, but that’s just me projecting.