DrawPad is a great tool, but sometimes it fails to save a pdf version of a file. On these occasions, Save drawing as pgn = Yes; Save as jpeg = Yes; Other formats = ?. When it fails to save the pdf, the progress bar flashes (so fast that it can't be read), and no error message appears - the pdf file simply is not created. I have made hundreds of pdf graphical objects using DrawPad, and this happens only occasionally. Dimension related? Too many elements in the project? Mac OSX 10.9.5; DrawPad Ver 3.11 (purchased).