How to change the brush size in Photoshop tutorial

How to set / change the size / diameter of brushes in Photoshop CC 2018 2017 2015 etc tutorial.

Change brush size in Photoshop

How to change the size of the Photoshop brush tutorial
  1. Select a brush tool / clone / art history etc in the Photoshop toolbar

  2. Go to the top bar and open / expand the brushes panel

  3. Select brush

  4. Use the slider to change the size / diameter of the Photoshop brush

  5. OR go to the brush size field and enter a value

  6. Click the little button on the right to save as a new brush preset

You can set the diameter / size by the slider as well as via the edit field (more accurate). The slider is quite useful for small sizes but the slider value jumps with large increments at the right side.


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There is a little restore button at the side of the edit field so you can restore the size to the original setting in a second if it goes too high. It is the same value as the value displayed in the panel beside the dab preset thumbnail. You can set the size of the thumbnail to be large etc but this does not modify the actual size of the original defined stroke.


If you try and set the size to greater than 5000px then the app will display an error message


panelYou can set / change the size via brush panel as well.


Go to the window menu and Brush and then Go to the brush panel and go to the size / diameter field and then change the value via the slider or enter the value in the edit field




interactiveYou change the size interactively as well.


You can also set the size in other ways such as holding down the option and ctrl key and drag on your mac (different on the pc with ctrl and alt) and drag left to right etc to increase and decrease the size.


You can also use the [ and ] keys to do the re-size but it jumps 100px to 200px etc which in many cases is not very useful and it would be good if there was a preference for the brush incremental size say 10px or 20px and not 100px etc


Go to a brush tool and then Hold down the alt / option key and ctrl

1) Drag left to decrease the value

2) Drag right to increase the value

3) Go up and down to change the hardness of the stroke (or opacity)


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