To change brush size in Procreate Pocket, drag the top brush slider on the left side of the canvas: up makes the brush larger, down makes it smaller. For finer control, press and hold the slider, slide your finger sideways away from it without lifting, then drag up or down. The further your finger sits from the slider, the smaller the size increments become.

Quick Steps: Change Brush Size in Procreate Pocket

1. Open a canvas and select a tool (paint, smudge, or erase).
2. Find the two sliders on the left edge of the screen. The top one controls size.
3. Drag the top slider up to enlarge the brush or down to shrink it.
4. For precision, keep your finger on the slider, move it horizontally away from the track, then drag up or down.
5. Lift your finger and draw. The new size applies to the current tool and brush.

That covers most situations. The rest of this guide explains why the fine-adjustment gesture matters, how the second slider works, and how to keep line weights consistent across a project.

Where the Brush Size Slider Lives

Procreate Pocket puts the Brush Sliders on the left side of the interface by default. There are two:

• Top slider: brush size.
• Bottom slider: opacity or pressure, depending on your device (more on that below).

A large brush is a long drag up, a small one is a short drag down. It's fast for broad changes like switching from a blocking-in brush to a detail brush, but it's too coarse for hitting an exact size on a small phone screen. That's why the fine-adjustment gesture is worth learning.

How to Fine-Tune Brush Size

The size slider is sensitive. To slow it down:

1. Touch and hold the slider handle.
2. Without lifting, drag your finger sideways, away from the slider track.
3. Still without lifting, move up or down.

The slider now moves in much smaller increments. The further your finger is from the track, the finer the control. Think of it like a scrubbing gesture in a video timeline: a wide horizontal offset gives you frame-level precision, and staying on the track gives you the coarse jump.

This isn't limited to brush size. The same sideways-drag behavior works on other sliders in the app, including opacity, so it's worth building into muscle memory.

Why Precision Matters

If you're doing linework for animation, small differences in stroke width are noticeable. Inconsistent weights can make a character look like it was drawn by three different people, and when you come back to a sketch the next day, it's hard to match what you did earlier. Hitting the same size deliberately, rather than eyeballing it each time, keeps a set of drawings coherent.

The Second Slider: Opacity or Pressure

The bottom slider is easy to confuse with size, so know what it does:

• iPhones with 3D Touch: the slider controls opacity. Drag up for more opaque, down for more transparent.
• iPhones without 3D Touch: the slider defaults to pressure, which changes how your touch affects the brush.

To swap between pressure and opacity, tap and hold the slider button until you feel a haptic tap. If your phone doesn't support haptics, the button visually pulses instead. The same sideways-drag trick applies here for finer adjustments.

If your strokes look weaker or lighter than expected after you've set the right size, check this slider before assuming something is wrong with the brush.

Switching to a Left-Handed or Dark Interface

If the sliders sit on the wrong side for how you hold your phone, you can change that. Tap the ellipsis to expand the toolbar, open Actions (the wrench icon), and look in the preferences for the interface options, which include Dark and Left-hand layouts. Moving the sliders to the side opposite your drawing hand keeps your palm from landing on them, and it makes one-thumb size adjustments more comfortable.

Changing Size at the Brush Level

Dragging the slider changes size in the moment. If a brush consistently feels too big or too small, the underlying behavior may be the cause, and it's worth looking in Brush Studio. To open it, tap your current tool icon to open the Brush Library, then open the brush you want to edit.

A few settings in the Stroke Path attribute change how size reads on the canvas:

• Spacing: controls how many times the brush shape stamps along a stroke. High spacing shows individual shapes with gaps; low spacing merges them into one fluid line.
• StreamLine: smooths wobbles in your line, which matters for inking and calligraphy.
• Jitter: offsets each stamp by a random amount, roughening the edge or scattering shapes around the path.
• Fall Off: fades a stroke from full opacity to nothing over its length.

Stabilization is a related attribute. It smooths strokes using a moving average, so higher values produce straighter, smoother lines, and the effect depends on how fast you draw. It can be set globally or per brush, and Procreate also offers Motion Filtering as a more advanced alternative.

These don't change the nominal size, but they change how thick, smooth, or broken a stroke looks at a given size. If you've tuned the slider and the stroke still looks wrong, spacing or jitter is often the reason.

If you plan to customize a brush heavily, duplicate it first so the original stays intact.

Saving Brush Sizes for Reuse

One tip from the Procreate community: tap the brush slider, then press the plus sign to save the current size to that brush, so you can return to the exact value later. You can also save multiple sizes per brush, and the same applies to opacity. Some brush-set creators ship their sets with preset sizes and opacities so artists don't have to dial them in each time.

That workflow is described for Procreate generally. Interface details can differ between the iPad app and Pocket, so if you don't see the plus sign on your version, fall back on the fine-adjustment gesture and note your preferred sizes in your project file or a style guide.

Common Problems and Fixes

The size jumps too much when I touch the slider. Use the hold-and-slide-sideways gesture.

I changed size but my strokes look faint. Check the bottom slider. It may be set to a low opacity or pressure value.

The brush looks different at small sizes. Check Spacing, Jitter, and StreamLine in Brush Studio. These can make a brush look dotted or rough at sizes where it should look solid.

I changed size and my eraser didn't follow. Paint, smudge, and erase are separate tools. Select the eraser and check its size separately.

The sliders are in the way. Switch to the Left-hand interface in Actions so the sliders sit on the opposite side of the screen.

Where Procreate Pocket Fits in a Motion Pipeline

For most motion designers and animators, Procreate Pocket isn't the final destination. It's a fast place to capture ideas on a phone: thumbnail storyboards, rough styleframes, character poses, hand-drawn textures, or marks you'll bring into After Effects, Blender, or Cinema 4D later. Because the sketches are going into a larger pipeline, consistency in brush size and line weight pays off downstream. A set of boards drawn with deliberate, repeatable sizes reads as one visual language, which matters even more when those drawings become source material for something else.

Procreate Pocket handles quick, hand-controlled mark-making, and your comp software stays the place where everything is assembled and finished.

FAQ

Does Procreate Pocket have a keyboard shortcut for brush size?

The on-screen slider is the primary method described in Procreate's handbook.

Can I make the brush size slider less sensitive?

The hold-and-slide-sideways gesture gives you finer increments on demand.

Is brush size the same for every tool?

Not necessarily. Paint, smudge, and erase are separate tools, so check the size after you switch tools.

What's the difference between brush size and opacity sliders?

The top slider changes the physical width of the stroke. The bottom slider changes either transparency or pressure response, depending on your device and setting.

Why does my brush look different at different sizes?

Settings like Spacing, Jitter, and StreamLine interact with size. If a brush looks off at one size, adjust those in Brush Studio.

Summary

Changing brush size in Procreate Pocket takes one gesture: drag the top slider on the left. The skill worth building is the hold-and-slide-sideways technique, which turns a twitchy control into a precise one. Combine that with a clear understanding of the opacity/pressure slider and a few Brush Studio settings, and you can keep your line weights consistent from the first thumbnail through to whatever pipeline the artwork ends up in.

To change brush size in Procreate Pocket, drag the top brush slider on the left side of the canvas: up makes the brush larger, down makes it smaller. For finer control, press and hold the slider, slide your finger sideways away from it without lifting, then drag up or down. The further your finger sits from the slider, the smaller the size increments become.

Quick Steps: Change Brush Size in Procreate Pocket

1. Open a canvas and select a tool (paint, smudge, or erase).
2. Find the two sliders on the left edge of the screen. The top one controls size.
3. Drag the top slider up to enlarge the brush or down to shrink it.
4. For precision, keep your finger on the slider, move it horizontally away from the track, then drag up or down.
5. Lift your finger and draw. The new size applies to the current tool and brush.

That covers most situations. The rest of this guide explains why the fine-adjustment gesture matters, how the second slider works, and how to keep line weights consistent across a project.

Where the Brush Size Slider Lives

Procreate Pocket puts the Brush Sliders on the left side of the interface by default. There are two:

• Top slider: brush size.
• Bottom slider: opacity or pressure, depending on your device (more on that below).

A large brush is a long drag up, a small one is a short drag down. It's fast for broad changes like switching from a blocking-in brush to a detail brush, but it's too coarse for hitting an exact size on a small phone screen. That's why the fine-adjustment gesture is worth learning.

How to Fine-Tune Brush Size

The size slider is sensitive. To slow it down:

1. Touch and hold the slider handle.
2. Without lifting, drag your finger sideways, away from the slider track.
3. Still without lifting, move up or down.

The slider now moves in much smaller increments. The further your finger is from the track, the finer the control. Think of it like a scrubbing gesture in a video timeline: a wide horizontal offset gives you frame-level precision, and staying on the track gives you the coarse jump.

This isn't limited to brush size. The same sideways-drag behavior works on other sliders in the app, including opacity, so it's worth building into muscle memory.

Why Precision Matters

If you're doing linework for animation, small differences in stroke width are noticeable. Inconsistent weights can make a character look like it was drawn by three different people, and when you come back to a sketch the next day, it's hard to match what you did earlier. Hitting the same size deliberately, rather than eyeballing it each time, keeps a set of drawings coherent.

The Second Slider: Opacity or Pressure

The bottom slider is easy to confuse with size, so know what it does:

• iPhones with 3D Touch: the slider controls opacity. Drag up for more opaque, down for more transparent.
• iPhones without 3D Touch: the slider defaults to pressure, which changes how your touch affects the brush.

To swap between pressure and opacity, tap and hold the slider button until you feel a haptic tap. If your phone doesn't support haptics, the button visually pulses instead. The same sideways-drag trick applies here for finer adjustments.

If your strokes look weaker or lighter than expected after you've set the right size, check this slider before assuming something is wrong with the brush.

Switching to a Left-Handed or Dark Interface

If the sliders sit on the wrong side for how you hold your phone, you can change that. Tap the ellipsis to expand the toolbar, open Actions (the wrench icon), and look in the preferences for the interface options, which include Dark and Left-hand layouts. Moving the sliders to the side opposite your drawing hand keeps your palm from landing on them, and it makes one-thumb size adjustments more comfortable.

Changing Size at the Brush Level

Dragging the slider changes size in the moment. If a brush consistently feels too big or too small, the underlying behavior may be the cause, and it's worth looking in Brush Studio. To open it, tap your current tool icon to open the Brush Library, then open the brush you want to edit.

A few settings in the Stroke Path attribute change how size reads on the canvas:

• Spacing: controls how many times the brush shape stamps along a stroke. High spacing shows individual shapes with gaps; low spacing merges them into one fluid line.
• StreamLine: smooths wobbles in your line, which matters for inking and calligraphy.
• Jitter: offsets each stamp by a random amount, roughening the edge or scattering shapes around the path.
• Fall Off: fades a stroke from full opacity to nothing over its length.

Stabilization is a related attribute. It smooths strokes using a moving average, so higher values produce straighter, smoother lines, and the effect depends on how fast you draw. It can be set globally or per brush, and Procreate also offers Motion Filtering as a more advanced alternative.

These don't change the nominal size, but they change how thick, smooth, or broken a stroke looks at a given size. If you've tuned the slider and the stroke still looks wrong, spacing or jitter is often the reason.

If you plan to customize a brush heavily, duplicate it first so the original stays intact.

Saving Brush Sizes for Reuse

One tip from the Procreate community: tap the brush slider, then press the plus sign to save the current size to that brush, so you can return to the exact value later. You can also save multiple sizes per brush, and the same applies to opacity. Some brush-set creators ship their sets with preset sizes and opacities so artists don't have to dial them in each time.

That workflow is described for Procreate generally. Interface details can differ between the iPad app and Pocket, so if you don't see the plus sign on your version, fall back on the fine-adjustment gesture and note your preferred sizes in your project file or a style guide.

Common Problems and Fixes

The size jumps too much when I touch the slider. Use the hold-and-slide-sideways gesture.

I changed size but my strokes look faint. Check the bottom slider. It may be set to a low opacity or pressure value.

The brush looks different at small sizes. Check Spacing, Jitter, and StreamLine in Brush Studio. These can make a brush look dotted or rough at sizes where it should look solid.

I changed size and my eraser didn't follow. Paint, smudge, and erase are separate tools. Select the eraser and check its size separately.

The sliders are in the way. Switch to the Left-hand interface in Actions so the sliders sit on the opposite side of the screen.

Where Procreate Pocket Fits in a Motion Pipeline

For most motion designers and animators, Procreate Pocket isn't the final destination. It's a fast place to capture ideas on a phone: thumbnail storyboards, rough styleframes, character poses, hand-drawn textures, or marks you'll bring into After Effects, Blender, or Cinema 4D later. Because the sketches are going into a larger pipeline, consistency in brush size and line weight pays off downstream. A set of boards drawn with deliberate, repeatable sizes reads as one visual language, which matters even more when those drawings become source material for something else.

Procreate Pocket handles quick, hand-controlled mark-making, and your comp software stays the place where everything is assembled and finished.

FAQ

Does Procreate Pocket have a keyboard shortcut for brush size?

The on-screen slider is the primary method described in Procreate's handbook.

Can I make the brush size slider less sensitive?

The hold-and-slide-sideways gesture gives you finer increments on demand.

Is brush size the same for every tool?

Not necessarily. Paint, smudge, and erase are separate tools, so check the size after you switch tools.

What's the difference between brush size and opacity sliders?

The top slider changes the physical width of the stroke. The bottom slider changes either transparency or pressure response, depending on your device and setting.

Why does my brush look different at different sizes?

Settings like Spacing, Jitter, and StreamLine interact with size. If a brush looks off at one size, adjust those in Brush Studio.

Summary

Changing brush size in Procreate Pocket takes one gesture: drag the top slider on the left. The skill worth building is the hold-and-slide-sideways technique, which turns a twitchy control into a precise one. Combine that with a clear understanding of the opacity/pressure slider and a few Brush Studio settings, and you can keep your line weights consistent from the first thumbnail through to whatever pipeline the artwork ends up in.