I'm having trouble with the OpenLayers Plugin exporting a map to a png or pdf file:
The output resolution of the exported osm-layer is very, very poor. Zooming to 100% in the png file shows big pixels. The rest of the map - so the output from shapes and fonts - is in the usual high resolution e.g. 300 or 600 dpi.
Is there any way to improve the osm-background-resolution?
Answer
Short Answer: No, not yet.
OSM tiles come as bitmaps. You might use tiles of a higher zoom level, but lables will appear smaller, and details become more tiny.
A solution might be to request a SVG export from the original openstreetmap.org website, georeference it and insert it into your Qgis canvas.
Or render your own tiles, with an inceased labelling size.
This page gives some hints: http://wiki.openstreetmap.org/wiki/OSM_on_Paper
But this is not part of the Openlayers plugin.
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