Vehicle stickers are primarily used for advertising on cars (buses, taxis, trucks), ground stickers, outdoor advertising, directional signs, and flip signs. They have excellent weather resistance and are usually removable. However, due to the lower print accuracy compared to indoor photography, they are less commonly used indoors.

All large format printing should be done in CMKY mode; RGB is prohibited. Modern printers are typically four-color, with some models offering six colors, including lighter versions of C and M for smoother, more realistic color transitions. During image creation, adhere to printing standards, as the printing company will adjust the image colors to match the proofs closely.

In both large format printing and photo images, it is strictly forbidden to have a single black value. You must add C, M, and Y colors to create a mixed black. If it's a solid black, it can be set as: C=50, M=50, Y=50, K=100. Especially when using it in Photoshop, be sure to change the black areas to four-color black. Otherwise, horizontal lines may appear in the black areas, affecting the overall effect.