Durahold Plus Felt And Rubber Rug Pad For Hard Floors - 9'X12'

Does the rubber back on this pad leave the rubber pattern on an engineered hardwood floor?

I have a 9x12 Oriental rug minus fringe what size pad should I purchase?

Can you use this pad under heated tile ? If so, does it leave a residue ?

Are your pads safe for Pergo laminate floors? We want to put area rugs down and want to put down pads to protect the floors.