1.
Save as PPT 2007 format if its in older format.
2.
Open the file saved in step1.
3.
Scroll and go to a slide where there is a
picture.
4.
Click on picture, go to format tab. Select
compress pictures.
5.
In Options
6.
Target output : click “e-mail (96 ppi)” &
select “automatically perform basic compression on save” & “delete cropped
areas of pictures”.
7.
Ok, Ok.
8.
This will reduce file size by almost 50%.
9.
Further can be reduced by publishing it as PDF.
10.
File – Save as : PDF or XPS – Select “Optimize
for:” minimum size (publishing online).
Using above steps a PPT file of size 15 MB got reduced to
less than 5 MB.
