RGB and CMYK Conversion
Time:2024-07-23
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The RGB color gamut is wider than the CMYK color gamut, and if the RGB mode is not changed to CMYK mode before printing, the press will automatically make the switch.
The problem with this automatic change is that it is not until you receive the finished print product that you can see the color of the final product, and the color difference is much larger than expected, and is especially noticeable if it is on a large area of material such as a poster.
In general, it is best to confirm that the RGB color mode is changed to CMYK mode before sending the file to print, and adjust the colors that do not meet the color matching requirements before printing.
If you think it‘s too much trouble, you can directly in the design and printing of the document when the new canvas on the choice of CMYK mode, the following describes how to create a new canvas in Photoshop CMYK color mode and how to convert between RGB mode and CMYK mode.
01 New CMYK canvas
When you create a new canvas in Photoshop, you can set different parameters in the details in the lower right corner. The default color mode is RGB, but there are many other options in the drop-down list, including CMYK color options.
You can also set different color modes for other devices, such as when creating a new custom canvas in iPad procreate. To create a new canvas click on the “+” in the upper right corner and then click on the new symbol below. Enter the custom canvas settings page, in the second setting “color profile” will also have “RGB” and “CMYK” two choices.
02 RGB and CMYK conversion
In Photoshop, open the RGB image, click the “Image” drop-down list of “mode” option, select “CMYK color” to switch, you can to CMYK colors, but after the conversion of color differences in the place where the need to re-modify.
It should be noted that, when in PS from RGB mode to CMYK mode conversion, layer information will be lost, in order to avoid the loss of layers after conversion can not be modified again, in addition to backing up the different modes of documentation, you can also select all the layers after the right-click and select “Convert to Smart Objects”.
So that multiple layers will become a smart object thumbnail, double-click the smart object can also return to the RGB color to modify.
If you want to check the color after converting to CMYK at any time while maintaining RGB mode, the shortcut key Ctrl+Y can instantly view the color display in CMYK mode, and CMYK will be added after the image name, and then press Ctrl+Y again to convert back to RGB mode, which allows you to switch between RGB and CMYK at any time to view. Press the shortcut key, Ctrl+Y to convert to CMYK mode.
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