Can't export SVG from docx file

[tjschuler]

I am experiencing an issue when a docx file has a SVG image in it, the extract-media option only extracts the PNG preview image.

I am using pandoc 2.13

A command you can use to reproduce it is: pandoc --extract-media bananas -f docx example.docx

I have attached a sample file to reproduce it with. example.docx

[jgm]

for convenience, here's how it is represented:

        <w:drawing>
          <wp:inline distT="0" distB="0" distL="0" distR="0"
          wp14:anchorId="6189F2C1" wp14:editId="2D9EC143">
            <wp:extent cx="5334000" cy="3552825" />
            <wp:effectExtent l="0" t="0" r="0" b="9525" />
            <wp:docPr id="1" name="Graphic 1" />
            <wp:cNvGraphicFramePr>
              <a:graphicFrameLocks xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main"
              noChangeAspect="1" />
            </wp:cNvGraphicFramePr>
            <a:graphic xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main">

              <a:graphicData uri="http://schemas.openxmlformats.org/drawingml/2006/picture">

                <pic:pic xmlns:pic="http://schemas.openxmlformats.org/drawingml/2006/picture">

                  <pic:nvPicPr>
                    <pic:cNvPr id="1" name="Graphic 1" />
                    <pic:cNvPicPr />
                  </pic:nvPicPr>
                  <pic:blipFill>
                    <a:blip r:embed="rId8">
                      <a:extLst>
                        <a:ext uri="{28A0092B-C50C-407E-A947-70E740481C1C}">

                          <a14:useLocalDpi xmlns:a14="http://schemas.microsoft.com/office/drawing/2010/main"
                          val="0" />
                        </a:ext>
                        <a:ext uri="{96DAC541-7B7A-43D3-8B79-37D633B846F1}">

                          <asvg:svgBlip xmlns:asvg="http://schemas.microsoft.com/office/drawing/2016/SVG/main"
                          r:embed="rId9" />
                        </a:ext>
                      </a:extLst>
                    </a:blip>
                    <a:stretch>
                      <a:fillRect />
                    </a:stretch>
                  </pic:blipFill>
                  <pic:spPr>
                    <a:xfrm>
                      <a:off x="0" y="0" />
                      <a:ext cx="5334000" cy="3552825" />
                    </a:xfrm>
                    <a:prstGeom prst="rect">
                      <a:avLst />
                    </a:prstGeom>
                  </pic:spPr>
                </pic:pic>
              </a:graphicData>
            </a:graphic>
          </wp:inline>
        </w:drawing>

[fsoedjede]

Hello @jgm

Are you still considering implementing this issue?

My suggestion would be to add an option, like docx+styles, which will enable exporting the svg file in the media directory. In the Pandoc ast, the svg path could be added as an attribute of the element.

The new option could be used like this: docx+extract_svgs.

Without extract_svgs, everything should work as currently.

Example

The native structure without the option:

Image
    ( "" , [] , [("width","30"),("height","40")] )
    [ Str "Image" , Space , Str "title" ]
    ( "media/image1.png" , "fig:" )

The native structure with the option:

Image
    ( "" , [] , [("width","30"),("height","40"),("svgpath", "media/image1.svg")] )
    [ Str "Image" , Space , Str "title" ]
    ( "media/image1.png" , "fig:" )

Having that, one can follow the epub best practice described there in #2766 and go from docx to markdown to epub (or latex) without loosing the svg file

What do you think?

[jgm]

I'm actually more tempted just to (by default) extract the svg instead of the png, since the png has the role of a fallback.
Then no filter would be required. Not sure if this would break anything.

[fsoedjede]

I'm totally ok for your suggestion.
It can be considered as an improvement

As many format supports svg, it should be ok.
If one format does not handle it well, rsvg-convert could be used as currently for PDF (https://github.com/jgm/pandoc/blob/3.1.5/src/Text/Pandoc/PDF.hs#L223)

[fsoedjede]

Thanks @jgm for the quick implementation