What are the graphics requirements (business cards, folders...)?

Question

Design

There is a task. You need to create a folder design for papers, business cards and plastic cards. I will work in raster. What are the requirements for a printing house to design such things?

Answer 1

First, in any case, you need to take the technical requirements for files from the "printers". There are already a lot of important points covered.
Secondly, you need to initially do everything in the CMYK color model.
Thirdly, we must not forget about the boundaries and location of information. I believe that from the cut edge to the text there should be a minimum of 3mm, more is better.
Fourth, you need to remember that your work will look very different on different papers.
Fifth, as for me, the most important thing is to ALWAYS coordinate layouts, color proofs and material samples with a responsible person with a signature.
Recently there was an excellent and visual article on this topic. The most common "bottlenecks" in preparation for printing are painted there.
ps: Yes, and about the black color in the previous comment - this is also very important. Black spreading into components is one of the most common problems when converting a file from RGB to CMYK, so it's best to do everything in CMYK initially.
ZZY: In vector editors (Illustrator and Corel) it is very convenient when previewing before printing to see how the file is decomposed into colors (Color Separation) - you can immediately see all the jambs.

Answer 2

You can check this with the printer.
It's just that your product is too simple (not high-print magazine layout), so there are no special requirements.
Of all possible, agree in advance on the data format (most often a raster is accepted in PDF)
PS In vector editors, for black, a separate black color is used, and not the choice of "upper left corner in the color palette", since it can have a separate special code signaling to professional printing equipment that a black cartridge should be used, and not mixed colors before black - if it is incorrect to connect the text and the insertion of color pictures, then it may turn out that the letters will seem to double in different shades, due to the fact that they were printed with a mixture. But I was told about this only when I was preparing the layout of the brochure.