I am curious to know if you have (visually) compared the 'Blurb PDF' to a PDF that you have exported from the Book Module in Lightroom.
Yes and they are usually similar
It sounds like a prinitng error on Blurb's end. Can you post a screeshot of the page with the issue? Out of gamut colors when printed should be very subtle, but we need to see it to determine if that may be the cause.
Todd thank you for trying to help me. I have included one of the many communications we have had with Blurb on this matter and direct your attention to note number 3 in which they confirm that the pdf we sent to Blurb and we are asked to review is not what is sent to the printer nor what the book will look like.
So if you read this communications what you learn is that Blurb recommends that we soft proof before sending to Blurb but LR Classic only allows you to soft proof a single photo in the Develop module and nothing is available to soft proof in the Book Module. Further they do recommend that you make the book in their BookWright program where you can soft proof the entire book. I am not sure we like that option as when we are in LR we sometimes go back and forth between the Develop and Book modules to make changes that will enhance a photo. It will become much more cumbersome having to go back in forth between programs and I would never do that.
What I do not understand is why Adobe cannot offer a soft proofing capability in the Book module just as they do in the Develop module.
Thank you for your time and interests.
Zoé S. ( Blurb Support)
Jun 2, 2020, 5:14:47 AM PDT
"It's not possible to soft proof the book in Lightroom, but usually Lightroom users are aware of out of gamut colors and they use Photoshop to soft proof colors with our color profile."
Try soft proof in PS using the Blurb.icc profile here:
Instructions for installing the profile:
EDIT- You'll need to use 'Export Book to JPEG' in the Book module with sRGB color profile. That's what is used in the PDF uploaded to Blurb.
Then open the page(s) JPEG with the issue and use PS soft proof with the Blurb.icc profile. You can then determine what font and/or background color provides better readability.