Q. A PDF is available, but I can't save it to my computer.
Barring the rare instance in which a publisher locks its PDFs and does not allow printing or downloading, the issue is probably related to a ScienceDirect journal. It is a long known issue that ScienceDirect PDFs cannot be downloaded on computers using a newer version of Internet Explorer or Firefox and Adobe Reader. There appears to be no problems with PDF downloads if your computer has Adobe Pro or if you have another PDF creator program installed on your computer.