How to reduce photo size

There are three types of reduction in PS

1. View reduction, there are many methods

Zoom tool, Ctrl "-", it can be achieved in many places in the navigator panel

2. Image size (canvas reduction)

You can execute "Image/Image Size" and directly enter the target size to be reduced.

You can also use "Image/Canvas Size", of course this reduced canvas is based on the loss of image content

Or use the crop tool, in its tool options, Write the target size of the crop to a smaller size and then crop the image

3. Reduce the layer content or a certain area of ​​the image (draw the selection first)

Execute "Edit/ Free Transform" or Ctrl T, you can zoom to the size you want

[Recommended tutorial: PS tutorial]

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