Images and PowerPoint Scanners usually try to save an image as a TIF or Bitmap Don’t use .bmp, or .tif files in PowerPoint They are too big They will make your presentations unnecessarily large Save as a .jpg All photographs Compression settings Larger #’s = great quality and larger file sizes Anything with more than 256 individual colors Save as a .gif Anything with less than 256 colors Large blocks of color Newspaper cartoons Scanned paper documents Black & white drawings

What is a pixel? The basis of all digital imaging Small square block of color information Does not have a set size The more pixels – the higher the “resolution”

Your screen is a big piece of Image Delivery Your screen is a big piece of graph paper 1024 pixels 768 pixels

Scan what you need… Don’t over-scan your image: “Hoping they will look better” For full screen images in PowerPoint You don’t need more than 1024 x 768 pixels The computer cannot display anymore than this! This is a moving target as technology changes

Image Style Exercise care when making graphics Don’t use two-color bitmaps for graphics Don’t stretch or expand graphics If an image looks jagged redo it If you have problems ask someone for help

Anti-aliasing Appears smoother Adds some “stepped” colors around the edge Should always be used with on screen digital imaging and logos

No Anti-aliasing

Web Images Try to keep it the same size that it was on the web Stretched images will always look worse