1, using ps to reduce the picture, the pixels become smaller, and the picture becomes blurred because the picture processed by PS is generally a bitmap, and the bitmap is a picture composed of pixels, which is determined by its nature;

2, narrow the picture, don't make it fuzzy method is

(1) Open the picture;

(2) "File-stored in web format", the preset picture is in JPEG format, and the quality is100;

(3) Open the triangle "Optimize file size ..." Enter the image size to be compressed in the box behind "Required file size" in the upper left corner, and then click "OK" to finish.

Extended data:

There are many ways for Ps to reduce images:

1. Zoom tool, Ctrl+"- "and navigation panel can be implemented in many places.

2. Image size (canvas reduction)

You can perform "Image/Image Size" and directly enter the size of the reduction target. You can also use "image/canvas size", of course, based on the loss of image content. Or use the crop tool, and in its tool options, crop the target size into a smaller size to crop the image.

3. Reduce the content of the layer or image area (draw the selection first), and perform "Edit/Free Transform" or Ctrl+T to zoom to the size you want.