I just opened a quick printing shop and just printed 100 A470g books, each with 258P, and the cover is coated paper 128g, but I don't know how to make an indentation before binding.

Generally speaking, according to your location, we are all located on the right side of the cover. If you use the same method, you can use this method.

1, directly cut the right side of the cover into pieces;

2.(258P, is it single-sided or double-sided? If it is single-sided, the book is about 25mm; if it is double-sided, it is about 13mm. )

Subject to the right side of the cover, press the line at 200mm to mark the book turning;

Press a line at 2 10mm, which is the first line behind;

If it is single-sided, press a line at 235mm, if it is double-sided, press a line at 223mm, which is the second line on the back;

Finally, add 10mm to the second ridge line to press a line, and then the indentation required by the bound books will be basically solved.

The most common problem in positioning is to determine the center line. . . . . .

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