[pdftex] Image transparency

[Prof Brian D Ripley]

On Wed, 20 Jun 2001, Wendy McKay wrote:

> Why is everybody trying to use png?
>
> Here is a note from an instructor at lynda.com
> on Web Design Graphics
>
> "The major browsers don't treat png
> consistently, so we recommend not using them for now. ...
> I'd suggest reoptimizing as either jpegs
> or gifs from the source files."
>
> 	May 2001.
>
> What is wrong with jpegs or gifs?

gifs: patent issues.
jpeg: blurring and artefacts if used on line drawings or block colour
  diagrams.

This is the pdftex group, and png is the bitmapped image format that pdftex
supports best.  It does not support gif.  What have `The major browsers'
got to do with it?  They do not display pdf at all!


-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595