I haven't purchased anything from them yet but if you select an O'Reilly book it says: "Read online, or download in DRM-free EPUB or DRM-free PDF format." Also

I haven't purchased anything from them yet but if you select an O'Reilly book it says: "Read online, or download in DRM-free EPUB or DRM-free PDF format." Also, on this page[1], it says: "Most of the ebooks available to download from eBooks.com (but not all) are protected by Adobe DRM." Given the above, I would assume that downloads of O'Reilly books would not be encumbered. [1]https://support.ebooks.com/hc/en-gb/articles/205639205-Installing-Adobe-Digital-Editions-ADE-on-your-computer https://support.ebooks.com/hc/en-gb/articles/205639205-Insta...