I have made a couple of small adjustments to the Invoice and Project PDFs.
First, and most significant, is the fact that the pdfs now use Helvetica as the font. Because this is a System font, and bundled in every machine as a default, it does not have to be embedded within the pdf. This means that the pdf file sizes have been reduced from of an average of just under 1Mb, to an average of around 20Kb or less. This revelation can be filed under ‘duh’.
Second, the Project PDFs have been divided into clearer segments with the help of a simple thin, black line, to aid legibility.