I suspect simplescan is not using any compression when saving the images to the PDF file. Another work-around, if you have ImageMagick installed:
convert -compress JPEG file-from-simplescan.pdf new-file.pdf
I suspect simplescan is not using any compression when saving the images to the PDF file. Another work-around, if you have ImageMagick installed:
convert -compress JPEG file-from- simplescan. pdf new-file.pdf