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After Effects stores its expression engine per project. Here is how to tell which one you are on, what breaks when you switch, and a migration order that keeps renders matching.
We are designing an internal automation tool for Adobe Illustrator and need to decide how to split work between the legacy ExtendScript surface (.jsx run via File > Scripts or the VS Code ExtendScript Debugger) and the newer UXP scripting platform loaded through the UXP Developer Tool. Both are documented, supported paths, but they are not interchangeable
When a developer calls app.project.items.addSequence(name, width, height, pixelAspect, duration, preset) with a preset name that exists both as a factory preset and as a user‑defined preset, it is unclear which preset’s settings are applied. The ExtendScript documentation does not specify the fallback logic when the supplied preset cannot be uniquely resolve
Custom Notification Logic When automating project audits or render checks via ExtendScript in After Effects (CC 2022–2024), a script needs to notify the user when specific conditions fail without interrupting the workflow with frequent modal dialogs. The alert() method guarantees visibility by halting the UI thread until dismissed, which becomes disruptive w
When a project must render a text layer showing a specific regional time that remains consistent across workstations, the documented options create a trade-off between portability and maintenance. One approach relies on the expression language’s Date object and the host system’s locale, optionally attempting to pass an IANA identifier to toLocaleString . Ano
Illustrator automation scripts: 2023 GPU Performance default creates headless compatibility boundary Scripts that execute in a local Illustrator desktop session may fail when the same automation is moved to production build agents that run without an attached display or user session. Running ExtendScript automation for batch PDF and SVG exports inside a CI/C
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