I created a powerpoint presentation and afterwards, organized the mess of files into folders and what I've discovered in the presentation are bunch of spaces where those images were supposed to be inserted into the presentation and "The image part with relationship ID rld3 was not found in the file"

I'm assuming somehow these images were LINKED instead of EMBEDDED into the presentation. How can I insure I'm embedding an image into the presentation? This presentation will be used from a variety of mediums and never from my computer so linked images will not work.

Thank you for your help.