Yeah, I just tried 300, 600, 1200, 2400dpi while setting cost factor to 66. Higher DPI value indeed results better PDF quality. But I still prefer cost factor 65, because
1. Size matters. With same dpi value, cost factor 65 results in a much smaller PDF file. Examples: - 66-2400dpi.pdf is 15523 bytes - 65-2400dpi.pdf is 8386 bytes 2. Name matters. Processing a hello.c file into a PDF, - With cost factor 65, it give me a hello.pdf - With cost factor 66, it always give me a _stdin_.pdf. So I have to rename it to something else before it's overwritten by next run. -- 王晓林 On Mon, Jun 17, 2013 at 5:04 PM, Brian Potkin <claremont...@gmail.com>wrote: > On Mon 17 Jun 2013 at 16:29:08 +0800, 王晓林 wrote: > > > grep 'DefaultResolution' /etc/cups/ppd/PDF.ppd > > > > gives: > > > > *DefaultResolution: 300dpi > > You should find that raising this value gives you PDFs with acceptable > quality whebn the cost factor is 66. > > Cheers, > > Brian. >