1. gather all images into one directory
2. edit / crop using GIMP
3. in GIMP, export as *.mng file
4. convert to pdf:
convert -interlace none -density 300 -quality 100 infile.mng outfile.pdf
...or PNGs...
convert -quality 100 input.pdf output-%04d.png
for really high quality (ie for TV slides):
convert -interlace none -density 300 -quality 80 -resize 1200 infile.pdf outfile_%03d.jpg
to convert images to pdf:
convert *.png output.pdf
-- pdf may be too large; use smallpdf.com to compress:
http://smallpdf.com/compress-pdf
Three other linux-based options to compress PDFs:
gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH -sOutputFile=outfile.pdf infile.pdf
- slightly higher quality, slightly larger size
gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -dNOPAUSE -dQUIET -dBATCH -sOutputFile=outfile.pdf infile.pdf
- much more precise, much slower, not much smaller...
gs -q -dNOPAUSE -dBATCH -dSAFER -sDEVICE=pdfwrite -dCompatibilityLevel=1.3 -dPDFSETTINGS=/screen -dEmbedAllFonts=true -dSubsetFonts=true -dColorImageDownsampleType=/Bicubic -dColorImageResolution=72 -dGrayImageDownsampleType=/Bicubic -dGrayImageResolution=72 -dMonoImageDownsampleType=/Bicubic -dMonoImageResolution=72 -sOutputFile=outfile.pdf infile.pdf
