I want to save individual PS6 files into one PDF to upload to kindle to create a book. My images in PS6 are all 8"x6" @ 300dpi. When I automate PDF presentation, no matter how I save it, the newly created PDF document becomes 72dpi. If it keeps the 8" x 6" the file downsizes to 576 x432. (72dpi) Even if I save without compression it will keep the 2400 x 1800 but changes the document to 33.34 x 25". (72dpi) Please help!! I need to keep the physical size to 8" x 6" but need the 300 dpi resolution
There is no option to set the images resolution with the automate PDF presentation.
I suggest you create an action "Save as PDF" where you will be able to set the image quality : Window > Actions (create an action and record your steps)
Then you can do a batch treatment with your action on all your psd files : File > Automate > Batch (and select your feshly created action)
All your PSD files will be converted into PDF 300dpi files, then you will have to assemble them with Acrobat or another app.