Case 1: Suppose I have simply a text to print on a plastic transparent sheet unlike paper. Just like the example shown below. If you see text is printed on a plastic sheet and then sheet is pasted on bottle.
Now, I created my document in Illustrator with no BG, but PDF shows white even when it's not there. It's not there actually if we open PDF again. But how would printer manage transparent BG print? Can it be done with PDF or I need to send a PNG image instead and tell him dimensions of print vocally?
Case 2: If I don't want even plastic sheet, just letters to be printed of a cursive text (letters attached together so I can paste it on bottle or wall with glue), be it made of any material, can this be done with PDF too? Or some other way? And how does printer manage this? (To understand more what I want to ask, see the word hello. Imagine it's made of any material, paper, plastic etc., I give the printer guy a file for the same without background.
How would printer print this hello, unlike other stuff which have backgrounds/rectangles/circles?
Basic doubt in both cases is related to transparency after print and a document recommendation for the same if it's not possible with PDF just like normal prints.