Different images for screen and printing

Different images for screen and printing

[Matthew Baker]

Hi all,

The more I think about the concept Hans suggested about having different
images for viewing on screen and printing, the more I like the idea :)  I
have some documents which include vector PDF diagrams.  These look good on
a 300dpi or 600dpi printer but are very aliased on screen.  Since they are
colour, Acrobat does no anti-aliasing.  I'd rather not include images in
their place as the vector versions look good in print.  Therefore, it
would be really good to include them as JPEGs for viewing on screen and as
PDFs for printing.  Does the plan cater for images of different type, or
just different resolution?  That would really put my presentations ahead
of the PowerPoint ones everyone else here seems to do.  (That and the good
maths and the fact that an entire presentation can fit on a floppy.)

- Matthew

--
Dr. Matthew Baker           matthew.baker@gmd.de
GMD - FIT.MMK               http://fit.gmd.de/hci/pages/matthew.baker.html

Re: Different images for screen and printing

[Hans Hagen]

Matthew Baker wrote:

> The more I think about the concept Hans suggested about having different
> images for viewing on screen and printing, the more I like the idea :)  I

Some time ago Thanh provided me an attributes entry for forms. Tests
work out ok so far and indeed I can have two alternatives per image.
Currently pdftex undergoes some low level primitive restructuring (which
is why I'm so busy testing all those new things, like fancy shaded
graphics in metapost and so). I need a bit different attr handling, but
that will come soon. Then I will build in the feature. 

> have some documents which include vector PDF diagrams.  These look good on
> a 300dpi or 600dpi printer but are very aliased on screen.  Since they are
> colour, Acrobat does no anti-aliasing.  I'd rather not include images in
> their place as the vector versions look good in print.  Therefore, it
> would be really good to include them as JPEGs for viewing on screen and as
> PDFs for printing.  Does the plan cater for images of different type, or
> just different resolution?  That would really put my presentations ahead

Different types sure, I'm thinking of something along the current way of
doing things: 

\useexternalfigure [mainone] [mainfile]
[width=whatever,display=otherone.ext]

etc etc \externalfigure[mainone], with the other one only showing up
when interaction is enabled.

> of the PowerPoint ones everyone else here seems to do.  (That and the good
> maths and the fact that an entire presentation can fit on a floppy.)

I've got 6 presentation styles now, but I still have to document three
of them. After that they will go public. 

Hans

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