Beginning with InDesign CS6, InDesign does not automatically apply font encryption. But font embedding is a complex issue. Here's a YouTube video by Anne-Marie Concepcion that explains some of the issues:
Thanks. I already understand all of that. But it still does not explain why ID encrypted Courier New. It makes no sense. Both Georgia and Courier New are listed as embeddable in the Windows font folder; so why the different treatment?
According to Adobe, "Fonts with an editable embedding permission can be embedded in electronic documents, and the embedded font can then be used by the recipient of the electronic document to view, print and further edit or modify the text and structure of the document in which it is embedded. These changes or edits can then be saved in the original document. Several fonts in the Adobe Type Library, including all Adobe Originals typefaces, other Adobe-owned typefaces and certain third-party font foundry typefaces, allow for editable embedding."
EPubs are "electronic documents."
However, Courier, but not Courier New, is listed in Adobe's font permission list. Perhaps Courier New is a Microsoft font? Does ID encrypt any font not in its own library even if the font is listed in the fonts folder as embeddable?