How to change brush size in gimp

Brushes are essential for all your artwork. Today, you’ll learn various methods to change the brush size with the GIMP editing tool. This includes altering via
- the tool options
- with keyboard shortcuts
- with your mouse wheel
Table of Contents
Increase the Brush Size
The tool settings are the first place to look for ways to change the size of your brush. Look within the tool choices once you’ve selected your brush. Find the slider icon labeled ‘Size’.
- To make changes, use the down and up arrows (to the right).
- Alternatively, click within the slider and drag to the left or right to resize it.
- Otherwise, double-click the number and type in a specified size.
For reference, the stock brushes are not editable. Make a copy of the brush by right-clicking it, and that copy may be edited if necessary. Alternatively, use the clone tool and a tiny fuzzy brush.
- The natural size of the brush is 51 (25 radius)
- Using the tool options, the size can be adjusted as required. You can also adjust the size without re-sampling.
Adjust the Paintbrush Size
The keyboard shortcuts are your next resizing option. These “keys” are compatible with both Mac and PC users.
Your bracket keys are the shortcut. The left ( [ ) bracket sign will make your brush smaller, while the right ( ] ) bracket will make it larger.
This will expand the size of the paintbrush by a 1px radius at a time! Accelerate the resizing by pressing “Shift + [ or ]” to increase or decrease the radius by 10px..
Adjust the Brush Size
This second technique is faster. You’ll need to make use of a mouse with a scroll wheel to use this option. Scroll away if you have one!
Is the Mouse Wheel Not Adjusting Your Brush?
If your mouse wheel doesn’t resize the brush as you had expected, there’s an easy fix. Navigate to the Preferences to set up your mouse wheel for adjusting the brush size;
Windows + Linux; Edit > Preferences
Mac; GIMP-(your version of GIMP) > Preferences
How to Resize Your Brushes in GIMP
Step One
Launch GIMP 2. Click the GIMP 2 program icon, which looks like an animal face with a paintbrush in its lips.
If you haven’t used GIMP in a while, it may take a few minutes to load.
Step Two
Create a new project. In the upper-left corner of the window, choose File, then Open…, select a photo (or a GIMP project file), and click Open.
To open a blank canvas, go to File, New…, choose a width and height for your canvas, and then click OK.
On a Mac, instead of File, click GIMP 2 in the upper-left corner of the screen.
Step Three
Bring out your tools. If your toolbox does not display immediately when you launch GIMP, click the Windows tab, select New Toolbox from the resulting drop-down menu, then drag the toolbox to the project’s side.
Step Four
Double-click the “Paintbrush” icon to open it. This will bring up the “Tool Options” pop-up window. This paintbrush-shaped symbol may be seen in the toolbox.
You may also use the pencil and other sketching tools in the toolbox to do this.
Step Five
Scroll down to the “Size” heading. It’s near the middle of the Tool Options window.
Step Six
Adjust the paintbrush’s size. To the right of the “Size” heading, click the downward-facing arrow to shrink the paintbrush, or the upward-facing arrow to increase it.
The default paintbrush size is 20.
Step Seven
Test the paintbrush. Click and drag the paintbrush across your photo or canvas to review its size. If you’re not satisfied with the brush size, raise or lower the size more in the Tool Options window, then test your paintbrush again.
Step Eight
Close the Tool Options window. To do so, click the X button at the upper-right corner of the Tool Options box. Until you alter the size of your brush again, it will remain at your desired size.
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