Hi there,
thank you for your answer!
The problem using "Insert Picture" instead of "Change picture" is the loss of the formatting settings.
In the first version of my e-book, the publisher stated a limit of 10 Mb for the entire document. Now, in this new version, the limit is 100 MB, so I am changing the pictures for the same images with a better resolution, but keeping the settings.
Thank you anyway!
Pat