NOTE: If the PDF file (attached to comment #1) is printed directly with
lpr AcrobatTestImage.pdf
then it prints fine. But if that file is opened with acroread and printed from acroread, it is degraded.
If CUPS is the culprit, then acroread must be either using a different API than the 'lpr' command, or else it is sending different bits than are in the .pdf file.
Attached is information from https:/ /wiki.ubuntu. com/DebuggingPr intingProblems, as requested.
NOTE: If the PDF file (attached to comment #1) is printed directly with e.pdf
lpr AcrobatTestImag
then it prints fine. But if that file is opened with acroread and printed from acroread, it is degraded.
If CUPS is the culprit, then acroread must be either using a different API than the 'lpr' command, or else it is sending different bits than are in the .pdf file.