On Monday, 12 June 2023 22:45:36 BST Tadziu Hoffmann wrote: > > But, the output direct to PDF from 'groff' does not match that of > > going to Postscript and then converting that to PDF using 'ps2pdf'. > > The main difference that I can see is that in p8ps.pdf the symbol > font has been scaled to match the x-height of the text font. > In p8pdf.pdf the Greek letters (alpha, beta, pi) are too large, > resulting in an unpleasant appearance of equations containing > these symbols.
Is this because the lowercase greek characters come from the SS font in postscript, which is not available to gropdf because it is type 3 font. Instead, gropdf uses the S font and artificially slants each character. In the file symbolsl.ps there is a transformation of the Symbol font:- /Symbol-Slanted [.89 0.0 15.5 dup sin exch cos div .89 0.0 0.0] /Symbol MakeTransformedFont And if you compare the character width/height given in the SS font the figures are .89 of the equivalent figures in the S font. Cheers Deri
