Rading physical pages beats screen based reading. At least for me. Newly bought roleplay assets in PDF form are printed, read and filed. Do reduce ink and page consumption, I usually remove colored backgrounds and print two pages on one A4 sheet. This post collect all the tools that I use to archive my pdf tasks.
remove all images with gs: gs -o noimage.pdf -sDEVICE=pdfwrite -dFILTERIMAGE input.pdf
#pdfunite {185..192}-oracles.pdf tmp.unite.pdf ; gs -o tmp.gs.pdf -sDEVICE=pdfwrite -dFILTERIMAGE tmp.unite.pdf; pdfcrop --margin '0 0 0 0' tmp.gs.pdf tmp.crop.pdf
#pdfunite {185..192}-oracles.pdf tmp.unite.pdf ; gs -o tmp.noimages.pdf -sDEVICE=pdfwrite -dFILTERIMAGE tmp.unite.pdf; pdfcrop --margin '0 0 0 -10' tmp.noimages.pdf tmp.crop.pdf; pdfcrop --margin '0 20 0 20' tmp.crop.pdf tmp.raw.pdf; pdfjam --a4paper -o tmp.a4.pdf tmp.raw.pdf;