Does APC-free publishing for an open access article mean it is completely free for the author?
Answer
For the publishers listed on the APC Support page as providing APC-free publishing, only the cost of the APC is waived. Optional publishing charges (e.g., for colour images), must be paid by the author. Some publishers impose standard page charges, but these are typically waived if the author chooses to publish Open Access. Always check author information on publisher websites for confirmation.