Use of a pic with transparency in the book module and keep the transparency?

Question

Hi.
Let's see if I can explain my question, I'm not an experienced user of either PS or LR (and not in the english language either)
I have edited a picture in PS and cut out a part of it and pasted the part in a new layer and then set the opacity of the background to 0%.
Then I saved the pic in PSD format and imported it to LR to be used in the book module. When I then use the pic and attache it to the book the pic have a white background.
What I want is that only the cut out part is shown in the book and the rest of the area of the picture frame is in the same color as the color of the pages (in my case light yellow).
Is it possible to do what I want to do and if it is, how do I do?

Answer 1

PelleC wrote:
The HEX FEEAAF in PS have a perfect match (for my eyes) to HEX FDEA9E in LR, the difference might indicate that I'm not using ProPhoto RGB working space inside PS. How do I check this (or how do I open a new Background with this setting)?
I get the same results when using an sRGB color profile image. Notice the LR background color at the Top and Bottom of the page below is slightly different than the image file. Both PS and LR Backgrounds were set to FEEAAF, so we have confirmed this is the issue!
When you open an image inside PS Using 'Edit in PS' from LR it uses your LR 'External Editing' Preferences settings. Set your LR's Preferences as below:
If you are using File> Open from inside PS you can check the file's color profile using Edit> Convert To Profile and select 'Destination Space' >RGB > ProPhoto RGB. In the image file used below it is already using ProPhoto RGB (i.e. Source Space).
Your PS Working Color Space should be set to ProPhoto RGB with warnings enabled using Edit> Color Settings as shown below from inside PS.