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ISBN Question
I just finished an epub for a client of mine, besides the epub he needed a mobi and a pdf. I generated these thru Calibre and now need to know the following.
Client then gave me ISBN number for the book he generated and I entered it in the metadata inside the epub. The client then generated 2 more ISDN #s and wants me to add these to the mobi and pdf.
Since I do all all file conversions in Calibre I need to know how to add the ISBN for a mobi, pdf and any other output file the client chooses. I read somewhere that Amazon / Kindle uses there own format for tracking books thru their system but need to confirm all this info as I cannot give the client his files without the proper info.
I originally posted this in the Sigil forum by mistake.
anybody?
thx
RD
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