There is no DRM (digital rights management) on Elsevier ebooks; however, systematic downloading and printing of Elsevier ebooks is not allowed.
The Marx Library has a limited number of Elsevier (ScienceDirect) ebooks, so it's best to look for them in one of three places, instead of using the ScienceDirect web site:
The ScienceDirect book detail screen provides the bibliographic information for a book, the table of contents, and tools to export the citation to a citation manager.
Elsevier titles can only be downloaded chapter by chapter, not the full book as one file; however, you can choose to download all the chapters at once. This will create a zip file on your computer.
Choose Chapter(s) and Download PDFs
Select Naming Convention and Download