Automatically Fitting Variable Text Within Adobe Illustrator Text Frames

Question

Is it possible to dynamically change the text and color of an .ai (Adobe Illustrator) file using AI/ML or any other technique? Currently, I am using ExtendScript to replace text frame contents. However, when the new text is too long, it overflows beyond the original text frame area. I want the text to automatically fit within the original text frame boundaries, regardless of its orientation — horizontal, vertical, circular, inclined, triangular, or even in cases of split text frames. Is there a way to achieve this automatically, either using ExtendScript, AI/ML integration, or any other method?

LucasDev · Accepted Answer

I’ve dealt with something similar while updating text through scripts in Illustrator. When the text length changes, Illustrator doesn’t really “auto-fit” it like InDesign does, so it ends up spilling out of the text frame.

What helped me was using a simple loop in ExtendScript that checks the text’s size and scales it down until it fits inside the frame’s width and height. It takes a bit of fine-tuning, but it works well for most shapes and orientations.

For complex layouts like curved or tilted text, I’ve had better luck with Astute Graphics’ “Fit Text” plugin, it automatically adjusts the text to stay inside the path or frame without distorting it.

There’s no AI or ML-based method yet that handles this directly in Illustrator, so scripting or plugins are still the best bet.

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