Question about PDF manipulation

[der Mouse]

>>> Please do not waste any time making new PDF documents,
>> Please don't waste any time complaining about PDF documents.  In
>> many cases, you're lucky to get the data in any form at all.
> You do not get my point: Instead of adding an extra step to make PDF
> files, I think it is better to keep the raw scans.

I'm entirely with you.  But that said, I'd rather have a PDF than
nothing at all, and it seems many of the people scanning stuff are
unwilling to do anything else. :-þ

> PNG is a nice, open and flexible format which is designed to be the
> best cross-platform lossless image format.

...something it is noticeably worse at than the netpbm family (pbm,
pgm, ppm).  (I can hardly imagine writing png-format image software
without using a library.  I routinely do so with p?m formats.)

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