Perhaps one of these:

method 1, without external conversion. Load the LaTeX package in markdown, 
insert the raw LaTeX command:

``` markdown
---
header-includes:
    ``` {=latex}
    \usepackage{svg}
   ```
---

See illustration below:

\includesvg[scale=1.0]{idea.svg}
```

Downside: the image only shows in LaTeX/PDF output. You could use a filter 
that allows you to hide/show bits depending on output formats, but then you 
might as well use Bastien's filter.

method 2, external conversion: as you've done, but you should use the 
standalone document class (assuming it doesn't conflict with the svg 
package. It crops documents to the size of the image. See 
https://ctan.org/pkg/standalone 

Best, J

On Monday, March 6, 2023 at 3:53:48 PM UTC A A wrote:

> I'd rather not write any filters for this, and convert to PDF or another 
> format externally, then embed in markdown. Is there perhaps a way to do 
> that?
>
> On Mon, 6 Mar 2023 at 16:46, Bastien DUMONT <bastien...-VwIFZPTo/vqsTnJN9+BGXg@public.gmane.org> wrote:
>
>> You can include the command directly in the resulting LaTeX document. 
>> This filter should do the job:
>>
>> ```
>> function Image(image)
>>   local file = image.src
>>   if FORMAT == 'latex' and string.match(file, '%.svg$') then
>>     return pandoc.RawInline('latex', '\\includesvg[scale=1.0]{' .. file 
>> .. '}')
>>   end
>> end
>> ```
>>
>>
>> Le Monday 06 March 2023 à 04:11:37PM, A A a écrit :
>> > I’d like to include SVG graphics in my LaTeX document using pandoc. I
>> > understand this is currently [1]not supported so I have resorted to the 
>> idea of
>> > performing the SVG to PDF conversion externally and then including in my
>> > markdown using something like this:
>> > 
>> > ![whee](foo.pdf)
>> > 
>> > I would prefer not to do this conversion using raw inkscape because the 
>> svg
>> > package in LaTeX has the added advantage of rendering LaTeX math within 
>> the
>> > figure if it encounters LaTeX math in the SVG. This won’t happen if I 
>> only use
>> > inkscape.
>> > 
>> > Unfortunately, I haven’t found a way to ensure that the resulting PDF is
>> > cropped to the extents of the image after doing a LaTeX compilation. For
>> > example:
>> > 
>> > \documentclass{article}
>> > 
>> > \usepackage{svg}
>> > 
>> > \begin{document}
>> >     \includesvg[scale=1.0]{idea.svg}
>> > 
>> > \end{document}
>> > 
>> > will compile as a full A4 sized page with page number. If I then 
>> include it in
>> > my markdown as ![idea](idea.pdf) I’d get the whole page as my “figure” 
>> and not
>> > only the SVG.
>> > 
>> > How can include SVGs with LaTeX math in Pandoc ?
>> > 
>> > --
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>> > to [2]pandoc-discus...-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
>> > To view this discussion on the web visit [3]
>> https://groups.google.com/d/msgid/
>> > pandoc-discuss/
>> > CAMwawgPKcXu-CapB6d_vSWc7%3DvfA_sQSzFnnv4nGBurq6%2BMkEw%
>> 40mail.gmail.com.
>> > 
>> > References:
>> > 
>> > [1] https://github.com/jgm/pandoc/issues/265
>> > [2] mailto:pandoc-discus...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
>> > [3] 
>> https://groups.google.com/d/msgid/pandoc-discuss/CAMwawgPKcXu-CapB6d_vSWc7%3DvfA_sQSzFnnv4nGBurq6%2BMkEw%40mail.gmail.com?utm_medium=email&utm_source=footer
>>
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>>
>

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