If you've ever tried to email a Powerpoint presentation or grab it on your USB drive for quick transport, you know that the poorly compressed images within the .ppt file tend to really bulk it up.

If you are working on a large PowerPoint presentation that presents multiple slides in a slideshow, the PowerPoint file grows in size with every picture you add. Attempt to send the final slideshow ...

TinyPNG is probably the most useful and easy-to-use online image size reducer that can compress up to 20 images at a time. However, the maximum file size is 5 MB. Talking about the image format, you ...