Для сжатия pdf файлов в линуксе нужна лишь одна комманда:
# ps2pdf -dUseFlateCompression=true ./file.pdf
А вообще ниже все флаги для данной программы:
Parameter name Initial value Notes
ASCII85EncodePages false
AlwaysEmbed []
AutoFilterColorImages true 1
AutoFilterGrayImages true 1
AutoRotatePages /None
ColorACSImageDict >
ColorDownsampleThreshold 1.5
ColorImageDepth -1
ColorImageDict >
ColorImageDownsampleType /Subsample 3
ColorImageResolution 72
CompatibilityLevel 1.3
CompressPages true
ConvertCMYKImagesToRGB true
CoreDistVersion 4000
DefaultRenderingIntent /Default
DownsampleColorImages false
DownsampleGrayImages false
DownsampleMonoImages false
EmbedAllFonts true
EncodeColorImages true
EncodeGrayImages true
EncodeMonoImages true
GrayACSImageDict >
GrayDownsampleThreshold 1.5
GrayImageDepth -1
GrayImageDict >
GrayImageDownsampleType /Subsample 3
GrayImageResolution 72
LockDistillerParams false
LZWEncodePages false 2
MaxSubsetPct 35
MonoDownsampleThreshold 1.5
MonoImageDepth -1
MonoImageDict >
MonoImageDownsampleType /Subsample
MonoImageFilter /CCITTFaxEncode
MonoImageResolution 300
NeverEmbed []
OPM 0
PreserveHalftoneInfo false
PreserveOverprintSettings false
TransferFunctionInfo /Apply 4
SubsetFonts true
UCRandBGInfo /Remove
UseFlateCompression true