photoshop resolution size and image size is set to how much?
Let me talk about setting under normal circumstances it.
Generally if it is in ink-jet printing paper print pictures best to reach 300, if it is printing, the best is 100, if a large billboard, generally more than a dozen is enough.
To talk about your case, supposedly you are printing to do, it should be done with a resolution of 100. But should also be considered for performance inkjet printer. If you are a company willing to pay a good printer would use 100 or do; if you are relatively simple devices such as schools and other places, with the 72 recommendations, otherwise people might put the card machine bad, after all, people are not so advanced machines. I used to do things with the 100, it was discovered that the owner of a print shop will be changed to 72 before printing, the reason I asked about, which is above, will the card machine.
You say things slow and make this card, I feel that we should not, I use the machine is super bad, did a lot of printing, 90cm × 120cm, and not slow.
Reference Links: https://zhidao.baidu.com/question/133941255.html
Recently the company to upload pictures to show the applet
The company's pictures do not know why, particularly after a period of time, found to be too large picture resolution settings
Open the image with PS click on the menu: Image -> Canvas Size
72 to set the resolution
