If you blog, chances are that you have uploaded a picture file into your blog in the past. I noticed some bloggers do not optimize the size of the pictures before uploading them into their blog. Failure to do so not only increases the uploading time of the pictures but also increases the downloading time and bandwidth of the server.
The 3 methods to optimize the size of the pictures are:
Method #1: Image Resizer (Microsoft PowerToys for Windows XP)
Microsoft PowerToys for Windows XP is packed with a tool called Image Resizer. It enables a user to quickly resize an image by right-clicking on the image and selecting “Resize Pictures”. Image Resizer can be downloaded here.
Method #2: Picasa from Google
Select the file you want to resize and click on the Export button at the bottom right of the program.
Insert the number of pixels you want to resize the image into. Set the “Image Quality” to “Normal” or the desired setting you want. Click OK to export the image.
Method #3: Adobe Photoshop
This is a two step process. Firstly, resize the picture to the desired size by selecting the menu (Image –> Image Size) or Ctrl+Alt+I. Select the “Constrain Proportions” checkbox to ensure the image is resized with the original ratio.
Next, further optimize the size of the image by saving it to web quality. You can do so by selecting the menu (File –> Save for Web) or Alt+Shift+Ctrl+S. Select the “Optimized” tab. Check out the size of the image if it were to be saved as gif or jpg as circled at the bottom left in the screenshot below. Depending on the image itself, sometimes saving it as gif will result in a smaller file size, or vice versa.
To get the best quality for jpg, select the “JPEG High” preset option. To get the best quality for gif, select the “GIF 128 Dithered” preset option. Save the image.