You can export Diagrammix drawings to these formats:
– PDF,
– PNG,

and SVG (File > Export as SVG).

When you export a drawing using the Export dialog box (File menu), an Export the Drawing dialog box may appear, in which you can specify settings for the exported file. If necessary, you can crop exported images to visible objects bounds, specify background transparency (PNG, TIFF). Resolutions from 72 dpi to 300 dpi are available.