Picture attachment without preview
In an invoices layout I would like to be able to insert a picture for each item in the list while still keeping the layout the same. A picture attachment icon that you could click to insert a picture (or pictures) and view later would be ideal. While I am using the products from the related product list for pricing the actual products themselves will be different on every invoice. Also when I send the invoice via email in a pdf format I DO want the picture for each product to be visible. Might be a lot to ask, I know but what are my options?