Hi PDF does have a lot of flaws. There have been a number of issues with it over the years.
It is what pretty much everybody has already installed. It works on just about every platform out there. That includes things like editors. Modern versions are quite good at "what goes in is what comes out". Simply put - it's the default standard. DjVu is wonderful for file size, but tough to find a version of for odd platforms. Importing the file into your favorite editor, or exporting the edited result generally involves multi step translation. It's used so rarely that even for supported platforms, the first step will be - go get it and install it. It's got the same sort of security holes that Acrobat has had. It's not got the update empire to patch them. Simply put - it's a work in progress that may never be finished. The money in all this comes from people paying for editors and the like. That's a critical mass sort of thing. I don't see anybody displacing pdf any time soon. I'd love to see it happen, but the deck is stacked against it. For things that have archival value (like manuals) pdf is very much the way to go. The odds of being able to read a pdf 20 or 30 years from now are pretty good. The same is not true of less well known formats. To me that over-rides any of the better / worse / I can get around it stuff. Bob -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of K. Szeker Sent: Friday, December 10, 2010 11:17 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] 3586A HQ PDF Manual available -optimization- 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.
