When working on organizing my images, I used the semi colon choice when inputting file info in Photoshop. I am having someone re-do my website and want to add new images from the catalog. The designer questioned my use of a semi colon rather than a comma to separate keywords, which was/is a choice according to Photoshop File Info. He said he wasn't sure if the semi colon might not present a problem for search engines. He would just be copying the keywords from my file info and so picking up the ; there. I'm using Expressions Media for cataloging on a pc.
So, does anyone have "for sure" answer on this one way or the other? And, if I have to change from ; to , is there a suggested way to do it easily or at least quickly rather than opening each image and each file info?