DJVU does work well but is quite uncommon. Every PC shipped these days seems to have adobe on it.
On Fri, Dec 10, 2010 at 11:16 AM, K. Szeker <[email protected]> wrote: > Hi all, > why isn`t please, with respect to all working persones, the "DJVU-Formating > " better as all experiments to reduce some from datavolume? Regularly it > needs only ~10%-20% memory as pdf-files... > Best greetings! > Karesz > > 2010/12/10 <[email protected]> > > > > > In a message dated 10/12/2010 10:19:08 GMT Standard Time, > > [email protected] > > writes: > > > > I've downloaded the reduced-size PDF and, although not very obvious, > there > > is loss of quality. See the attached comparison and see how sharpness > is > > reduced on the optimized capture at the right side. My goal was to > create > > the highest possible quality manuals, using the big sharp scans found at > > KO4BB website. I'd prefer to release them as good (and big) as possible > so > > that anyone who needs it can reduce the size (always at a cost). The > > optimization can be done at any time but the lost bits are lost forever, > > > > > > > > ------------- > > I've also found that the Adobe optimisation option needs to be used with > > care and subtle, and sometimes not so subtle, loss of quaility seems to > be > > inevitable. > > I never use it now on files intended for distribution. > > > > Whilst modern scanners can produce excellent quality in terms of > resolution > > etc the two big problems I've observed with them, and with the scanning > > techniques they seem to encourage, are the very large default file sizes > > they tend to produce and the much reduced contrast, with the latter > > usually > > being much more of a nuisance. > > > > Both seem to be due to the way in which everything gets treated as colour > > or greyscale and the only way I've found so far found of dealing with > this > > on completed PDFs is to extract all the pages as TIF files and process > > them > > individually for contrast enhancement etc, and superfluous color depth > > reduction, in something like Photoshop or PaintShopPro. > > > > I've had some good results with this but you sure need one heck of a lot > of > > patience and spare time, so mostly these days I give thanks for large > hard > > drives and just try to live with it:-) > > > > regards > > > > Nigel > > GM8PZR > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
