How to change size of a diagram ?

Question

I'm using macro "Diagram" with "Plant UML", but diagram appear extremely large by default (we have to scroll a lot) and I do not found howe to reduce default size.

I know we could zoom in and out, but I want to change the default size which appear before change

Malera_Philippe_CH-Vevey · Answer

I'm using an enterprise version of Confluence (10'000 users), impossible to add  a new add-on component without struggling for years with the IT department.
I wonder an option in the diagram itself to change size.

Igor Medeiros - Modus Create · Answer

Hi @Malera_Philippe_CH-Vevey!

PlantUML diagrams rendering too large is a common issue.

Just Add+ has built-in diagram sizing controls:

- Set default width/height for PlantUML macros
- Responsive rendering that adapts to page layout
- Zoom controls without manual scroll hunting

We use this across our Confluence instances at Modus Create. The app lets you configure default diagram sizes at the space level, so you're not fighting with each individual macro.

Happy to share our PlantUML macro config if you want to see the setup!

Malera_Philippe_CH-Vevey · Answer

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