I have several finished presentations but want to apply my own template to them. How do I apply a template?
AFAIK you cannot apply a template to an existing presentation.
What you can do is:
- Create a new blank presentation from the desired template
- Copy and paste all the slides from the old presentation
When you put them in the new presentation the right style should be applied. As an alternative you could alter the slide master on each of the old presentation (but it’s more work I suppose).
Hope it helps!
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Solution is using LO extension “DocumentTemplateChanger” available in https://extensions.libreoffice.org/extensions/documenttemplatechanger.
It works for Writer, Calc, Impress and Draw and has additional features, compared to previously used TemplateChanger that worked only for Writer.
There’s an enahncement request https://bugs.documentfoundation.org/show_bug.cgi?id=50699 to make this core LO functionality.