How to Scale Strokes Proportionally in Illustrator (2026 Guide)

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To scale strokes proportionally in Illustrator, turn on Scale Strokes & Effects, either in Illustrator's General preferences, in the Transform panel menu, or in the Scale dialog. When it is on, strokes grow and shrink with the object, and when it is off the stroke weight stays fixed. This guide uses Adobe Illustrator.

Quick Steps

1. Select the object.
2. Open the Transform panel menu and check Scale Strokes & Effects.
3. Resize the object.
4. Check the stroke weight in the Stroke panel.

Scaling Strokes Proportionally in Illustrator: Step by Step

1. Understand the setting

Scale Strokes & Effects controls whether stroke weight and effects such as drop shadows resize with the artwork.

2. Use the Transform panel

Open Window > Transform, click the panel menu and tick Scale Strokes & Effects before resizing.

3. Use the Scale dialog

Double-click the Scale tool, enter a percentage and tick Scale Strokes & Effects before clicking OK.

4. Set the preference

In Illustrator > Settings > General (Mac) or Edit > Preferences > General (Windows), tick Scale Strokes & Effects so it is the default.

5. Check your result

Open the Stroke panel to confirm the new weight, and compare artboard views at 100 percent.

Tips for Better Results

• Turn the setting off when you want to resize a logo but keep line weights consistent.
• Check that the setting did not change before sending files to others.
• Use Object > Expand Appearance when you need fixed outlines.
• Use Appearance panel strokes for consistent scaling of multiple strokes.

Common Problems and Fixes

• Strokes look too thick after resizing: the setting is on, so retype the weight.
• Strokes do not change: the setting is off.
• Effects scale unexpectedly: turn the option off for effects.

Why This Skill Matters for Design Jobs

Illustrator is named in 44% of the 412 graphic, brand, visual and UI design job posts ArtBlast tracked from March to August 2026 (181 posts), so everyday skills like this one are what employers expect. Browse illustrator jobs, graphic designer jobs and freelance illustrator jobs, and see what the work pays in the illustrator salary guide. Not sure which Adobe app to learn? Read Photoshop vs Illustrator.

Need the software? Try Illustrator on Adobe (free trial available). The single app costs $22.99 a month in the United States on an annual plan billed monthly.

Frequently Asked Questions

How do I scale a stroke with the object in Illustrator?

Turn on Scale Strokes & Effects in the Transform panel menu, the Scale dialog or preferences, then resize.

Why does my stroke stay the same size?

Scale Strokes & Effects is turned off.

Where is Scale Strokes & Effects?

In the Transform panel menu, the Scale dialog and the General preferences.

Does it affect effects too?

Yes, effects like drop shadows scale along with strokes when the setting is on.

Sources

Steps were checked against the official guides in November 2026. Menu names can change slightly between versions.

• Adobe Illustrator User Guide
• Adobe plans page, US prices (single app $22.99 a month, annual commitment billed monthly). Adobe shows local prices by country.

Job data: ArtBlast job tracking, March 13 to August 12 2026, distinct posts (one per employer and title) with a full description. Graphic, brand, visual and UI cohort: 412 distinct posts and 364 employers.