How do I attach valuable artist prints to a pre-framed canvas?

!ook for archival mounts either in the framing dept or scrapbooking dept. They make double sided archival tape strips that usually come in permanent and removable adhesive.

If it is a valuable print your best bet is to take it to a framing shop. You want everything that comes in contact with the print to be archival. Without knowing what is on the canvas the print could be ruined by chemicals in it. As an example I have a limited edition print I bought years ago. The paper was not stored properly (by me) just tucked away in among some other papers. There are brown speckles and spots all over the paper. It looks like it's aged 70 years rather than 20 or so. It obviously was not high quality paper nor archival but I could have preserved it a little better if I'd taken better care of it. Since you know your art has value your best bet is to take no chances.

Suzann, I don't understand your question/request. Would you please re-post so I can help you?

You can definitely find all the supplies you need at an art supply store or maybe a craft store but if the print is valuable, your best bet is to have it done professionally. Attaching a print to canvas is not advised as it won't be protected or archival.