Policies vary by publisher and journal. Look up the journal or publisher by name in the SHERPA-RoMEO database to find out its policies covering archiving—referred to on the Commons as depositing. For example, if your article was published in PMLA, you may deposit preprint (not yet peer-reviewed) versions of the article as well as postprint (peer-reviewed) articles. You may also publish the PDF file available from the publisher as long as you comply with certain conditions. If your article is published in French Studies, for instance, you may deposit a preprint version before it is accepted and a postprint version after a two-year embargo but not the publisher’s PDF file.
If you wish to deposit a book chapter or a monograph, please check your agreement with the publisher.