For secondary publication (Open Access) you may not use the original publisher generated PDF. In most cases only a "Final Draft" is allowed.
“Final Draft“ defines the status of your article after the peer review. In other words: we need a version which has the same content like the publishers’ PDF, but differs in its appearance (for example your final “Word”-document).
Please send such a version of your article for secondary publication to: email@example.com and ensure growing citation by broader perception of your article.