This is a very convenient solution, because you can immediately overcome mistakes made by potential customers when placing an order. Often, they send a bad file in the wrong format, with the web printing this error is still captured by the script itself accepting the order.
Of course, such printers also have their drawbacks, ie the lack of the possibility of an individualized approach to the client and his needs, unless we get a really good printing house.
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.Specified in advance formats for printing leaflets and business cards, so that they are comfortable and as uniform as possible. Without standards, even leaflets could be completely unreadable and even repulsive.
Well, because the mob was quite illiterate at the time.
Well, since the last 50 years (even hundreds of them), it's all about printing - books, leaflets, business cards, even shirts, mugs, pens ...Well, really everything.