This function is available from the document menu.
With this function you can load a SVG document from four sources :
Check the SVG file source radio button. Select the svg file with the browse button and load it.
If the document does not contains html audio/video controls, and if its size is different than (100%,100%), then the document can be edited :
with its real size, and scrollbars if needed
or with an adjusted size to the drawsvg window.
Otherwise, the document is edited with its defined size and this option is disabled.
This mode allows to set an SVG from an image. The dimensions and the coordinate system of the document are identical to the image.
Check the image file source radio button. Select the image file with the browse button and load it.
By default, the document is edited with the size of the image.
Check the url source radio button. Copy the URL of an SVG document from the browser to the edit field. Then view the URL and load it.
For example, to load https://upload.wikimedia.org/wikipedia/commons/f/f3/Blank_World_Map.svg
If the option save is checked, when saving, DRAWSVG will suggest to update the resource with an HTTP PUT Request with the document contents.
FreeSVG is a well known WEB site with a lot of SVG files free to use. You can search documents in the gallery with tags, author names.
DRAWSG has a navigation GUI in the gallery of FreeSVG that lets you edit it's documents directly.
Check the freesvg source radio button. Query the gallery, browse documents, look them and load the selected one.