Preparing photi

[nand]

I am a bit confused... How do I prepare raw files to make book on blurb?? How do I best prepare for PDF file?? Do I need a jpeg.?? Using Lightroom 4.
Photo are now nef format?

[Victoria Bampton]

Hi Nand, if you're creating the book in Lightroom's book module, then you can drop the NEF files straight into the book design and Lightroom will sort it out for you when you upload the book file to Blurb.