1. Digital delivery format: Considering this element is important. In general, a closed delivery format is preferred over an open one. Printing companies usually appreciate it when PDF is used for delivery, over software such as Freehand, Quark or Illustrator. However, depending on the case, you may need a specific software requirement.
2. Resolution: Checking resolution is also important, 300 dpi resolution is recommended. Sometimes, a lower quality format may look fine on the screen but it may come out bad when printed. Thus, checking that the image has good resolution is important.
3. Cut and cross signs: It is very important to send the documents with cut signs for guillotine, as well as well-defined crosses. Basically, in order to avoid mistakes when cutting and leave a little margin of error.
4. Page position: Positioning is the process of page wedging of a document containing several pages so that, once it is printed and folded, the document still has its logic order. If this process was not made, the document could end up in disorder (quite a common mistake). Thus, this process should be verified.
5. Making up: If your document has several pages, do not forget that the even page numbers must go to the left and odd numbers to the right. The first page within a publication is usually page number 3. Take into account that the total number of pages must always be an even number; thus, you will need to add blank pages when necessary.
6. Spine size: There are several spine sizes, depending on the page thickness (grammage) and number. Many times, designers forget this. It is important to take it into account when printing, since, in case it is forgotten, the title page and back page could be harmed.
7. Color mass backgrounds: To avoid potential printing problems, specially if you are going to use digital printing, using color mass backgrounds is not recommended. When it is possible, you need to add something like a texture or network to the image. In this way, you will never get stripes or spots on the backgrounds.
8. Typographies: Sending all the typographies used on the project is absolutely necessary, as long as they are not drawn or the project is not on PDF format. This helps to reduce the printing company digitization work.
9. Overprinting: Black is the only color to be overprinted. The rest of the colors should not be overprinted, since they will undergo an alteration when mixed. To achieve a greater density on black mass backgrounds, you will need to reinforce them with 30% cyan. In this way, a deeper black will be obtained.
Color masses and backgrounds: Offset is the only system resistant to this. If you wish to print on digital system, texturing or applying some kind of noise to the background is recommended, since digital tends to have spots. This is also the case for gradations, usually having banding or digital scale issues.
10. Very thin weaves: This is similar to the digital case. They tend to be lost and thus, thickening the weave or changing to Offset is recommended.
11. Differences in time: In the case of digital printing, the same image may show variations in color or details if they are not printed at the same time.
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