Embedding photos in Word

A coworker needs to submit a document in Word for a conference presentation. He is "embedding" jpegs into the Word doc. Even trying the anchor function, the jpegs move around in the document instead of staying put. I've also tried the other options, such as no anchors, no overflow and having text tight top and bottom but still some photos move and others not. Is there a way to anchor a photo in place in a Word doc and not have it flip all over the place?