djvu or pdf for math and physics textbooks?
#1
I think that having both in the same torrent is a waste of space and bandwidth.

PDFs that are already e-books I keep them as it is. Djvu too.

Should I upload PDFs or djvu if the book exists in both formats? I think that I'll choose whichever is smaller.

Books that I scan myself I'm saving in both formats just for safe keeping.
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#2
Hi Naruto_fox,
I do agree with you. As long as quality is the same, It shouldn't be repeated but I would prefer pdf.
On another topic... I would love to know if you happen to have a scan of "A modern approach to Classical Mechanics" by Harald Iro or know where i can get it ... please tell me.
Thanks!



(Sep 21, 2014, 19:39 pm)Naruto_fox Wrote: I think that having both in the same torrent is a waste of space and bandwidth.

PDFs that are already e-books I keep them as it is. Djvu too.

Should I upload PDFs or djvu if the book exists in both formats? I think that I'll choose whichever is smaller.

Books that I scan myself I'm saving in both formats just for safe keeping.
Reply
#3
Just improved the process on making the ebooks:

- PDF clearscan produces smaller sizes if the whole text is pure 1bit. In case there are shaded graphs, photos or colored pics, I have to manually select that area so that only the text is made 1bit
- Djvu small mod produces files much smaller than those outputted by Finereader. I can even interpolate 300 dpi to 600 dpi that the filesize is still very small, like under 10mb for 400 pages
- PDFs can have page number matching the printed page number. On the other hand, there is no such option for djvu. I don't make bookmarks to release faster.

Some books that I've found have the text so jaggied that converting it to clearscan yields a PDF 10x larger than the original file, in such cases I don't add the PDF to the torrent and leave the smaller djvu only.
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