I'm using ghostscript to embed fonts in some existing pdf documents. The
options
-dEmbedAllFonts=true
-dSubsetFonts=false
do this for me but the images in the resulting pdf document  have a lower
resolution (72dpi) than those of the original document (300dpi).  I've tried
setting many options that could affect this:

-sDEVICE=pdfwrite
-q
-r300
-dBATCH
-dNOPAUSE
-dSAFER
-dPDFX
-dPDFSETTINGS=/prepress
-dEmbedAllFonts=true
-dSubsetFonts=false
-dJPEGQ=100
-dAutoFilterColorImages=false
-dColorImageFilter=/FlateEncode
-dAutoFilterGrayImages=false
-dGrayImageFilter=/FlateEncode
-dUseFlateCompression=true
-dTextAlphaBits=4
-dGraphicsAlphaBits=4
-dMaxSubsetPct=100
-dAutoFilterMonoImages=false
-dMonoImageFilter=/CCITTFaxEncode
-dCompatibilityLevel=1.3

but with no luck.  Can anyone suggest a way to preserve image resolutions?

Thanks,
Bob
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