引用:
作者: 学 习
这是印刷文件，我截取的一部分，分辨率是300
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For a black-and-white image (i.e., without semitones), (especially if it is text), you need to set 1200-1800 dpi resolution. 300 is too small. It is suitable only for ordinary halftone images.
If I correctly understood your problems.
Antivirus does not give me a look at the attached image