Mainly using commonly used production software such as Photoshop, CorelDraw, Freehand, Illustrator, etc.
Photo printing, inkjet printing [cherry advertisement]
documentation requirement
(1) Indoor spray painting
The original file size is large, with a DPI requirement of 72 or above; The DPI of larger files can be reduced to 55 (for billboards).
Attention should be paid to file sizes that are relatively small, such as A4 size, which should reach 300DPI or above. The smaller the size, the higher the DPI
(2) Outdoor spray painting
a. For files within 1 to 10 square meters, to ensure accuracy, the DPI should not be lower than 30;
b. For files over 10 square meters, the DPI should not be lower than 25;
c. Extra large files, with file size reduced by 10 times and DPI not less than 180;
(3) Storage format
It is best to save all files in TIF format of Photoshop, JPG is also acceptable, but the compression ratio should be above 8;
When storing in CDR format of CorelDraw files, all text must be converted into curves;
It is recommended to convert files created by Freehand or Illustrator to TIF or JPG format in Photoshop, or export them to EPS or AI format; All files are produced in CMYK four-color mode.
Everyone should remember that all images used for printing and output must be converted to CMYK at the end. Of course, for the convenience of creating images, using RGB is also acceptable, but it is important to remember to convert it in the end.
Photo printing, inkjet printing [cherry advertisement]
Accuracy: For printed images, 50 pixels/inch (or even higher) is usually sufficient for small images, while for large images, you can produce 20/10/7/8 pixels. As long as the overall effect is not bad, it's enough.
Color: It is best not to print a single solid color. For example, when printing M100, it is best to add Y5 inside. That is, M100, Y5. The requirements for black are higher. You can easily drag it to the deepest part of the palette, as much as you want. This way, the printed image will be saturated and there will be no areas where ink cannot be seen due to poor nozzle quality or inability to spray.