Nothing strange, I have a small script to cleanup pdfs in general (reducing thei...

Nothing strange, I have a small script to cleanup pdfs in general (reducing their size as well), essentially

  pdftops -paper A4 -expand -level3 file.pdf

  ps2pdf14 -dEmbedAllFonts=true          \
    -dUseFlateCompression=true           \
    -dOptimize=true                      \
    -dProcessColorModel=/DeviceRGB       \
    -r72                                 \
    -dDownsampleGrayImages=true          \
    -dGrayImageResolution=150            \
    -dAutoFilterGrayImages=false         \
    -dGrayImageDownsampleType=/Bicubic   \
    -dDownsampleMonoImages=true          \
    -dMonoImageResolution=150            \
    -dMonoImageDownsampleType=/Subsample \
    -dDownsampleColorImages=true         \
    -dColorImageResolution=150           \
    -dAutoFilterColorImages=false        \
    -dColorImageDownsampleType=/Bicubic  \
    -dPDFSETTINGS=/ebook                 \
    -dNOSAFER                            \
    -dALLOWPSTRANSPARENCY                \
    -dShowAnnots=false                   \
     file.pdf file.pdf

that's is. After if needed we can add extra metadata. It's not specially designed to remove certain kind of tracking but simple and useful enough in most cases.