On Thu, Mar 28, 2002 at 12:46:07PM +0100, Martin Schroeder wrote: > On 2002-03-28 10:07:59 +0530, Kalyan Mukherjea wrote: > > TeX document from him/her but it would be preferable if there were a > > switch in the ps or pdf viewers which would simply interchange ffffff > > (white) pixels for (000000) black pixels. Is this a stupid/impossible > > suggestion from a technology-ignorant person or is something available > > for this purpose? > > At least GhostScript and xpdf have no such switch. It should be > simple to implement; please contact the respective authors. >
I had a long talk with Piotr Pianowski (the author of psview) and he was talking with Piotr Strzelczyk and we've (in an independent way) come to similar conclusions. The problem __looks__ simple but it's certainly not. For instance, what should one do with illustrations? Should they be negativated too? Perhaps... Now if the illustration is a text-based eps or a simple graphic it probably looks best if presented in negative, but if it's a bitmapped-full-coloured picture it _probably_ should be left intact. Now, the implementation also isn't as simple as it looks, even using the wonderful Ghostscript interpreter. If you plan to convert the PDF to be still acrobat-friendly the problem are even worse This looks like a good beer-on-hand topic for the EuroBachoTeX 2002 conference, especially while having a bone-fire. Perhaps there should be an easy solution for 90% of postscript files living somewhere in the wild and 95% of simple ones, produced by text-only TeX and dvips.. Happy Easter everybody -- Krzysio Leszczynski
