Imagine that we buy a monitor and its input does not match our video card, even though it has the same type.That's why certain standards apply. In polygraphy and graphics, such standards also exist - appropriate definitions of CMYK colors - key for the appropriate color reproduction.
Without standards, even leaflets could be completely unreadable and even repulsive.
They are ordered wholesale and also consumed in bulk.For each order, the production costs are optimized, and the appropriate technique and type of printing is selected. Graphic designers, DTP operators and printers deal with this. They are responsible for the quality of the printout and as soon as something is wrong they are the first to be targeted by the dissatisfied boss. Their work is quite hard and I have to admit that you have to really have a fuss to do it. Work after hours, maximum focus and responsibility - definitely not work for everyone.
In this case, the paper purchased by the customer can be delivered to the address indicated by him.