Open PS, fill in the size, and add the bleeding position to the filled size. Add 3MM deflation position on each side. For example, the width is 30CM, the actual filling is 30.6CM, the height is 20CM, and the actual filling is 20.6cm ... Remember that the unit is cm.

2. Determine the resolution of the hinge.

The print resolution of hinge is 300DPI, the number of inputs is 300, and the selection unit is: pixel/inch, which is the general resolution of printed output.

3. Determine the color mode of the hinge.

The color mode of printing is CMYK, not RGB, so you should choose CMYK mode when creating a new document.

4. Select View → Check (√ ruler) in the PS menu bar.

In the upper left corner, drag the ruler to the position of 3MM with the mouse, and then release the mouse, and you will see a blue line. After dragging the ruler to the position of 3MM on the left and upper side, the blue line will show a square area.

5, the other three Angle, in turn, drag out 3MM feet.

This is the printed bleeding line. The contents of the text and the main picture should not exceed this bleeding line position, and the parts other than the bleeding line should be cut off when printing.

6. Three folds are fixed to the position of each broken line.

For example, if a 30CM-wide fold is to be made into three folds, and each fold is 10CM, then we need to fix the position of 10CM, as shown in the figure. The positions of 10CM and 20CM are marked with blue lines, and the position of broken lines should be considered when designing text and picture contents.