Tools for submitting scanned data books in the correct format to http://bitsavers.org
make-tifpdf input.pdf [output.pdf]
a script for converting one pdf with scanned pages (300-600 dpi, color or grey)
to a PDF with
- 600 dpi 1-bit TIFF pages
- colored 300 dpi jpg front/cover pages
$ ./make-tifpdf 1973_Fairchild_Semiconductor_The_TTL_Applications_Handbook_197308.pdf
Processing:
1,2G 1973_Fairchild_Semiconductor_The_TTL_Applications_Handbook_197308.pdf
372 PDF pages
Progress : [########################################] 100%
1,2G done/1973_Fairchild_Semiconductor_The_TTL_Applications_Handbook_197308.pdf.done
75M tumble/1973_Fairchild_Semiconductor_The_TTL_Applications_Handbook_197308--tumble--600dpi.pdf
=== Summary ===
Colored front/back cover: yes
1062.43 seconds processing time
PDF: 372 pages
21.00 pages/minute
2.85 seconds/page
- pdfimages
- pdftoppm
- convert (part of Imagemagick)
- tumble https://github.com/brouhaha/tumble is a utility by Eric Smith to construct an PDF file from one (or more) 1-bit-tiff image files and/or jpg files.