Is it possible to embed or link one inkscape SVG document inside another one?

Solution 1:

Prefer <use> to <image> as the later is rendered at a fixed resolution and doesn't scale as regular vector objects do in the current document. http://www.w3.org/TR/SVG11/struct.html#ImageElement

But the element <use> cannot reference entire SVG files, its xlink:href attribute is a reference to an element/fragment within an SVG document (http://www.w3.org/TR/SVG11/struct.html#UseElement). The 'use' element can reference any local or non-local resource.

example:

MyLibrary.svg:
<svg (...)>
        <rect x="0" y="0" width="200" inkscape:label="upper-left-blue"
              style="fill:#729fcf;fill-opacity:1;fill-rule:nonzero;stroke:none"
              id="upper-left-blue" height="200"/>

UseParts.svg:
        <use x="0" y="0" width="400" xmlns:xlink="http://www.w3.org/1999/xlink"
             xlink:href="MyLibrary.svg#upper-left-blue" xlink:type="simple"
             xlink:actuate="onLoad" height="400" id="use8793" xlink:show="embed"/>

Support of that feature may vary for different SVG editors/viewers, as far as I know it should work (at least) in Inkscape, Firefox and Batik.

Solution 2:

Use the image element and reference your SVG file. For fun, save the following as recursion.svg:

<svg width="100%" height="100%" viewBox="-100 -100 200 200" version="1.1"
     xmlns="http://www.w3.org/2000/svg"
     xmlns:xlink="http://www.w3.org/1999/xlink">
  <circle cx="-50" cy="-50" r="30" style="fill:red" />
  <image x="10" y="20" width="80" height="80" xlink:href="recursion.svg" />
</svg>

Source: https://stackoverflow.com/questions/5451135/embed-svg-in-svg/5451238#5451238