After Effects: Resize Textbox Hack with Expressions

Special thanks to our sponsors Squarespace. For a free trial and 10% off, visit and use the promo code: DOJO Tip originally by Ross Owens: Responsive Auto Scale Preset: Today we’ll learn how to use some clever expressions in After Effects to manually control textbox sizes with sliders. This can be a handy trick if you’re trying to resize the textbox dynamically, whether for UI/UX animations or other reasons. ▸ Creative Dojo Store: ▸ Best Plugins for Motion Design & VFX: ▸ Best After Effects Templates: