Create personalized design tempate

We are a company who serve personalized monogrammed jewelries, shirts, pillow case, wood items and more. We need someone who can develop a software wherein our client can easily see outcome of their initials or name on various monogram or font designs. Currently we only use photoshop or illustrator and send to the client in jpeg form. We want a software we can use live in our store that when a client approach us we can easily show them the design appearances of their initials and finalize order to lessen processing time.