On Monday, April 12, 2021 at 9:54:52 PM UTC-5 Matt Jolly wrote:

I did some work on this late last year: from memory you are able to use any pptx (within reason, as indicated by the manual) and modify styles / slide templates appropriately. Note that you need to modify Slide Masters, not the slides themselves (again, from memory...)

For **table styles**, however, there does not exist an interface within PowerPoint to modify these at the style level. You need to manually modify the XML within your template, see http://www.brandwares.com/bestpractices/2015/07/xml-hacking-custom-table-styles/ for more information. It *does* work, and table styles are used when tables are generated within a slide, however even Microsoft's Office XML validator is unable to tell you if your table styles are correct; you need to try and open the document in PowerPoint and see if you get any errors.

On Tuesday, April 13, 2021 at 8:13:45 AM UTC+10 predat...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
I guess I'm not seeing on the documentation where it is called out how to modify those styles? Some GitHub issues I saw said to unzip the PPTX and then look for some XML file that called out the four styles called out in the documentation. However, that didn't make sense to me.

Does anyone have any examples of how to successfully, and clearly explained, do this?

On Friday, April 9, 2021 at 11:56:19 AM UTC-5 John MacFarlane wrote:

Generally speaking, the only modifications that are going to work
in a reference.docx or pptx are the changes to the styles
as described in the manual. If you add images, notes, etc.,
you're likely to get a corrupted file.

Phillip Dudley <predat...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> I wanted to try making a PowerPoint using Pandoc and Markdown, but use a
> template that had some images already in the template. I saw that you can
> generate a reference document by doing:
>
> - https://pandoc.org/MANUAL.html#options-affecting-specific-writers
>
> The command:
>
> pandoc -o custom-reference.pptx --print-default-data-file reference.pptx
>
> Then I added a background image to the first slide, saved the
> custom-reference. I then tried to build the new PPTX using
>
> #cat Makefile
> .PHONY: build
>
> build:
> pandoc \
> --reference-doc custom-pptx-reference.pptx \
> --output slides.pptx \
> content.md
>
> I then get the following errors:
>
> filbot@pop-os ~/D/D/L/PPTX> make build
> pandoc \
> --reference-doc custom-pptx-refernce.pptx \
> --output slides.pptx \
> content.md
> Could not find shape for Powerpoint content
> make: *** [Makefile:4: build] Error 63
>
>
> Am I misinterpreting the documentation on how to use this?
>
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