FrankXin If you're new to this, I recommend choosing the type used by ham radio operators. They are more expensive, but someone will know how to do it properly. For the paper, choose at least 250g of paper, as different papers have different requirements for printing and feel. A good all-purpose option is white cardstock, which has a smooth surface and doesn't show details in dark areas. Dutch white cardstock is also available, but it may not show details well in dark areas. As for color, because the CMYK color range used for printing isn't as wide as RGB (RGB has a 0-255 proportion per channel, while CMYK has a 0%-100% ink concentration per channel), and paper doesn't glow, there will always be some color difference, which may be more subtle. Also, the price is only competitive when printing in large quantities. The printing requirements can be followed as I have written.This tutorialTo create files with the smallest possible color difference, this tutorial is applicable regardless of where you print them. Of course, you can also have me print them for you; my prices are competitive, but you need to ensure that your files meet these requirements.
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