Extendo for After Effects
Extendo v1.1.1 for After Effects – The Ultimate Auto-Resize Extension
Download Extendo v1.1.1 for After Effects on Windows and Mac, a powerful script that instantly extends your compositions to fit any duration with smart, automated handling of all layers, keyframes, and assets. Perfect for adapting template projects to different time requirements, extending animations for longer scenes, or quickly adjusting composition lengths without manual layer-by-layer work.
Key Features of Extendo v1.1.1:
- Smart Composition Extension: Automatically extends your entire composition to a new duration while intelligently handling all layers, keyframes, and assets
- Layer Time Management: Adjusts layer in/out points, keyframe timing, and precomp durations proportionally or absolutely based on your needs
- Keyframe Scaling: Choose how keyframes scale—proportional to the new duration, anchored to specific points, or with custom mapping
- Precomp Handling: Intelligently manages nested precompositions, extending them appropriately or leaving them untouched based on your settings
- Marker Preservation: Maintains composition and layer markers with proper timing adjustments
- Loop Support: Options for handling looped animations—extend loops, repeat patterns, or hold final frames
- Real-Time Preview: See how your composition will look at the new duration before applying changes
- v1.1.1 Update: Performance improvements and enhanced compatibility
- Cross-Platform Support: Works on both Windows and Mac systems
Perfect For:
- Motion graphics artists adapting templates to different time requirements
- Editors needing to quickly adjust composition lengths for broadcast slots
- Anyone who’s ever manually dragged layer handles to extend an animation
- Studios working with client revisions that require timing adjustments
- Creators who need to repurpose content for different duration requirements
System Requirements:
- Adobe After Effects 2025, 2024, 2023, 2022
- Windows 10/11 (64-bit) or macOS
- 4GB RAM minimum (8GB+ recommended)
- 25MB available disk space
- Enable “Allow Scripts to Write Files and Access Network” in Preferences > Scripting & Expressions
Installation:
Copy the script file to your After Effects ScriptUI Panels folder:
- Windows:
C:\Program Files\Adobe\Adobe After Effects [version]\Support Files\Scripts\ScriptUI Panels\ - Mac:
/Applications/Adobe After Effects [version]/Scripts/ScriptUI Panels/
Access via Window menu > Extendo
Note: Version 1.1.1 includes performance improvements over the initial release . The script’s ability to intelligently extend compositions with complex layer structures makes it essential for anyone who frequently needs to adjust animation durations .
Professional Edge Extension in After Effects
Rotoscoped and keyed footage can have discolored pixels at the edges, especially in motion-blurred areas. Extendo erodes away those bad edges and replaces them with colors that match your inner core footage.
Edge extension is a technique used in Nuke, Flame, and Fusion—and is now finally available in After Effects.
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