A4 paper pixels, resolution

If we want to design a magazine image, how many pixels and resolutions are required for the A4 size? In general, the 300dpi used for copper paper is enough. If it is too small to print out, it may not be clear. If it is too large, memory consumption and CPU processing are very slow. Therefore, 300dpi is a good demarcation line.

 The physical size of A4 is 21 cm × 29. 7 cm.

 

    The specific conversion to pixels depends on the resolution: when the resolution is 72 pixels/inch, the size of the A4 paper image pixel is 595 × 842; when the resolution is 96 pixels/inch, the size of the A4 paper image pixel is 794 × 1123; the resolution is 120 pixels/inch, the size of the A4 paper image is 1487x2105 pixels; the resolution is 150 pixels/inch, and the size of the A4 paper image is 1240x1754 pixels; when the resolution is 300 pixels/inch, the size of the A4 paper image pixel is 2480 × 3508;

 

 Other sizes, generally DPI standard printing:

The size of the A4 paper image is 2480x3508 pixels;

A3 the size of the image is 4960x3508 pixels;

B3 the size of the image is 3248x4300 pixels;

B4 the size of the image is 3248x2150 pixels.

in the end, when printing A4 in PS, the pixel is 2480x3508. the resolution is 300 dpi. The color mode is CMYK.