Optimizing Images


When you take a photo with a digital camera, the raw image is usually too large and the file size is a few MB. You need to optimize all your images’ dimensions and file sizes to so that they fit nicely on the web pages and download fast.



You can optimize your images in Photoshop:


Opening an Image in Photoshop:

  1. Run Photoshop
  2. Go to File > Open
  3. Browse the image that you want to optimize. Select and click Open.


Change Image Dimensions:

  1. Go to Image > Image Size
  2. Type in 72 for resolution
  3. Type in your desired width (height will change proportionally)


Optimize and Save:

  1. File > Save for Web & Devices
  2. Now you need to choose the compression format as described before. Select JPG, GIF or PNG.


For JPG: Change the quality using the slider
For GIF and PNG: reduce the number of colors     


Take a look at the file size on the bottom of the image when making these changes and click Save when you’re happy with the file size and the quality.


Compression Formats


Image: Saving as a JPEG




Saving as a gif file


Image: Saving as a GIF



If you don’t have Photoshop you can use a free online photo editing tool like:
http://www.gimp.org/     or     http://pixlr.com/





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