That issue was resolved with the version after Version 16, where the images are not part of the file.
Here is what the Help menu says:
Copying and pasting text and other items You can copy text, Picture/Objects, trees, and other reports to the Clipboard and then paste them in another program. You can also copy individuals from one file to another.
1. If you want to copy text or a Picture/Object, select it. Some items, such as trees and reports, cannot be selected in the usual way by double-clicking or clicking and holding the mouse button.
2. From the Edit menu, select Copy.
1. Position your cursor where you want to insert the text or other item. If you want to replace a section of existing text or an existing item, select the text or item before moving on to the next step.
2. From the Edit menu, select Paste. Family Tree Maker pastes the text or item.
To paste individuals, see Copying Individuals Between Files.