I know this question has been answered in other threads, but none of the solutions worked for me.
I have a pdf file which contains 4 plots with millions of colourful dots (Manhattan plots). The PDF file is so big (~100 MB) and I cannot even open it properly on my computer.
I have tried
gs and commands like
gs -sDEVICE=pdfwrite -dPDFSETTINGS=/ebook -q -o output.pdf manhattan_plots_long.pdf
but it seems that it does not work and I get an error message which says "Unable to convert color space to sRGB, reverting strategy to LeaveColorUnchanged."
I could find another code which fixes this error, but the new PDF file has the same size!
gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dNOPAUSE -dQUIET -dBATCH \
-dAutoRotatePages=/None -dUseCIEColor -sOutputFile=output.pdf input.pdf
I do not understand what is wrong. Is there any solution for my problem?