I want to open PDF's with iBooks. I am using Mavericks, so I drag and drop the files in the iBooks library and still opens with adobe. I also try the "open with" option and it says the file is damaged.
When I open PDF's in Ibooks, it uses preview not ibooks. So I presume that your default for PDFs is adobe. I suggest that you post your query on the iBooks for mac forum.
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