Photoshop CS3 | CHANGING THE IMAGE SIZE

1. To resize the image, go to the Image menu and select Image Size.

2. Make sure the Resample Image: box is checked. This will change the pixel size of your image as well as the print size.

3. Make sure the Constrain Proportions box is checked.

4. In the Pixel Dimensions: section or the Document Size: section, change the width or height; notice the other dimension changes automatically (if the Constrain Proportions box is checked).

5. Click OK.

If you don’t like your change, undo it via the Edit menu or History Palette, and then follow these steps again.

TIPS FOR CHANGING IMAGE SIZE

    Changing the image size is a basic Photoshop skill that you will use in many different situations. You can change the Pixel Dimensions, Document Size, or the Resolution. Generally speaking, you can always go down in size or resolution without loosing any clarity, but you cannot often go larger/higher.

• You may want to scan your images at a higher resolution than you may need, because you can always discard image information, but you cannot add it.

• Adjust the Pixel Dimensions if the image is going to be displayed only on the screen (web page, PowerPoint presentation, etc.) You can change either by pixel size or percentage.

• Adjust the Document Size if the image is primarily for printing.

• The Constrain Proportions option changes the height automatically if you adjust the width (and vice versa).

• To lock in the pixel size, but change the print size, uncheck the Resample Image option, and change the resolution.

• Monitors can display either 72 or 96 dpi (it varies among monitors). Therefore, a rule of thumb is to save all of your images for the web at 96 dpi, but never less than 72 dpi.