You can, but we recommend against it. If you are using any of the software we accept we prefer to receive the native files. Since we are printing to a specific manufacturing and packaging process, your files must meet our specs exactly. A part of our prepress service is to adjust your files to meet our specs if we find minor errors or oversights. If you supply PDFs, we are extremely limited in what we can fix or modify. If your layouts do not conform to the templates, are not in the correct template, violate any of our printing specs or require text changes, we will be unable to make the adjustments and you will have to supply new files