Slides -> JPEG (640x480)?

[Guest]

How do I convert slides to JPEG of a certain size?
Could it be done directly from within PowerPoint,
or should I do it in 2 steps? Which method gives the best quality?
I tried to SaveAs PNG and then write an external GDI+ C# program to resize
and convert to JPG. But how can I improve the quality? Would be possible
first save as very large slides?

 

[TAJ Simmons]

N Thorell

See

Improve PowerPoint's GIF, BMP, PNG, JPG export resolution
http://www.rdpslides.com/pptfaq/FAQ00052.htm

and here
http://www.rdpslides.com/pptools/FAQ00005.htm


If you do want 640x480 at the best quality....if it was me I'd open the presentation
then "slideshow > view slideshow"....then either capture each screen by hand (alt-prtsc) or use something like
techsmiths SnagIt. Then save to a JPG using your favourite graphics software (photoshop Paintshop pro gimp etc)

Cheers
TAJ Simmons
microsoft powerpoint mvp

awesome - powerpoint backgrounds,
free powerpoint templates, tutorials, hints and tips etc
http://www.powerpointbackgrounds.com

 

[Guest]

I was thinking of doing it in C# ..

N Thorell

See

Improve PowerPoint's GIF, BMP, PNG, JPG export resolution
http://www.rdpslides.com/pptfaq/FAQ00052.htm

and here
http://www.rdpslides.com/pptools/FAQ00005.htm


If you do want 640x480 at the best quality....if it was me I'd open the presentation
then "slideshow > view slideshow"....then either capture each screen by hand (alt-prtsc) or use something like
techsmiths SnagIt. Then save to a JPG using your favourite graphics software (photoshop Paintshop pro gimp etc)

Cheers
TAJ Simmons
microsoft powerpoint mvp

awesome - powerpoint backgrounds,
free powerpoint templates, tutorials, hints and tips etc
http://www.powerpointbackgrounds.com

 

[TAJ Simmons]

I was thinking of doing it in C# ..

You'll have to count me out then

TAJ

 

[Guest]

So far, I have been trying to use the function DrawImage in GDI+ to resize
the image. But the trick seems to be to use a suitable 'Interpolation'
filter when reducing the size, without loosing the sharpness.