Guide

How to convert an AI-generated design into InDesign

Q: Is the result a flattened PDF or screenshot?

No. There is no PDF in the chain. idmly builds the InDesign file directly, so every frame reflows, every style is editable, and charts can be recoloured.

Q: Do I have to rebuild the layout by hand?

No. That is the whole point of idmly. It converts the AI-generated HTML into a clean .idml so you skip the manual rebuild entirely.

Last updated June 2026 · by Kelly Fraser, maker of idmly

Yes. AI design tools hand you an HTML file, and idmly converts that straight into a native, editable Adobe InDesign (.idml) file — real text frames, named paragraph styles, and charts as editable vectors. No PDF, no screenshot, no rebuilding the layout by hand. This is exactly what idmly was built for.

The first two pages of any file convert free, no signup. A one-time $49 license unlocks unlimited full-document conversions.

AI builds gorgeous layouts now. Reports, decks, one-pagers, finished in minutes. Then a client asks for the editable InDesign file, and the whole thing stalls, because the design lives as HTML and InDesign doesn't open HTML. The gap between the two has always been filled by hand. It doesn't have to be.

Why AI layouts get stuck outside InDesign

When an AI tool designs something, it outputs HTML and CSS, the language of the browser. InDesign is a print tool that speaks its own format. There's no shared door between them, so the design that took minutes to generate takes hours to rebuild in InDesign. idmly is that missing door: it turns the AI's HTML into a real InDesign document.

How to convert an AI-generated design to InDesign

Save the AI design as a self-contained HTML fileMost AI design tools export, or let you save, a single .html file. If it opens in your browser and looks like your design, it's ready.
Drop it into idmlyUpload it at idmly.com. The first two pages convert free, no card. idmly renders the file in a real browser and builds native InDesign markup: fonts bound, styles named, charts redrawn as editable vectors. Usually under thirty seconds.
Open the .idml in InDesignDownload the .idml (designs with images come as a zip, keep the Links folder beside it) and open it in Adobe InDesign or Affinity Publisher. Everything's editable.

Works with whatever your AI tool outputs

idmly renders your file in a real browser and reads the computed layout. It never parses your CSS, so the framework doesn't matter: Tailwind from a CDN, compiled styles, Bootstrap, plain CSS. If Chrome can render it, idmly can convert it. Images can be base64 or any https URL, and remote images are pulled into a Links folder, properly linked for InDesign.

What lands in the file

→Correct fonts, bound by name. No silent Minion substitution.
→Real named paragraph and character styles, not loose overrides.
→Charts and tables as native, editable vector objects.
→Editable text frames you can reflow.
→Exact page geometry. It opens clean.

Frequently asked questions

Can I convert a Claude or ChatGPT design into InDesign?

Yes. AI tools hand you an HTML file, and idmly converts that into a native, editable .idml with real text frames, named styles and editable charts. It doesn't matter which AI tool produced the HTML.

Does idmly work with any AI design tool?

Yes. idmly reads the rendered browser layout rather than parsing your code, so any self-contained HTML design converts, whatever tool or framework made it.

Is the result a flattened PDF or a screenshot?

No. There's no PDF in the chain. idmly builds the InDesign file directly, so every frame reflows, every style is editable, and charts can be recoloured.

Do I have to rebuild the layout by hand?

No, that's the whole point. idmly converts the AI-generated HTML into a clean .idml so you skip the manual rebuild entirely.

Stop rebuilding AI layouts by hand.

Drop your AI design in and watch the first two pages come back as a real, editable InDesign file, free.

Try it on your file — free → $49 lifetime license