burkphoto You are describing printing such as is used in packaging and books etc. I have worked with/supplied data to printing firms catering for that type of 'industrial printing' when getting books printed. My wife worked in packaging printing for some years where the production of plates and multi colour presses printing onto plastic packaging was the core business. That would not be the way to print a few photographs. In fact it is most unlikely the prints would be able to show all the subtle tones of a photograph. The superb prints of Ansel Adams original fabulous photographs still fall short of the actual photograph. I have had both versions in my hand to view.
The OP says he wants to get prints of a photograph.

Aaaaghhhhhhh ! All this talk of compression loss comparison. My worry is do you really want to print PHOTOGRAPHS from PDF files? I make PDF documents to accompany instruction talks. The images print very well for those handout sheets but I would not want to print my images to be framed and displayed from the same files. Any conversion to an eight bit file throws away some of the information recorded by the camera. Modern cameras record images in fourteen bit. Setting the camera to record in JPEG instead of RAW instantly compromises the recorded image as a JPEG is an eight bit format. Capturing in RAW and then printing from PDF will also throw away some of the recorded information. Who wants to buy a Rolls Royce or a Cadillac and then drive around in the delivery truck?

burkphoto You are describing printing such as is used in packaging and books etc. I have worked with/supplied data to printing firms catering for that type of 'industrial printing' when getting books printed. My wife worked in packaging printing for some years where the production of plates and multi colour presses printing onto plastic packaging was the core business. That would not be the way to print a few photographs. In fact it is most unlikely the prints would be able to show all the subtle tones of a photograph. The superb prints of Ansel Adams original fabulous photographs still fall short of the actual photograph. I have had both versions in my hand to view.
The OP says he wants to get prints of a photograph.