There might be situations where you will need to get an image to fit into a specific size. Sometimes while resizing graphics, they tend to end up squished horizontally or vertically.
To fix this, select an image of size, say, 584 by 400 pixels. We need to resize the image so that the final size is 200 by 300 pixels.
~ To find out the size of your image, select Image/Image Size from the Photoshop menu bar. This dialog box gives you the width, height and resolution of your image. You'll see a checkbox next to the word Proportions. Do not uncheck that checkbox -- your image will be squished if you do so.
~ You need to change only one dimension. Photoshop will then do the math for you and figure out how big the other dimension needs to be in order to retain the correct proportions for your image.
~ Select the dimension that will need to change the most. Here we're changing an image of 400 x 584 to 300 x 200. The height dimension in this example needs to change the most, so change the height from 584 to 200. Photoshop scales the width size proportionately, making the image 137 pixels wide.
~ Now you'll need to change the width of the image. Don't use the Image/Image Size for this. Instead, use the Image/Canvas Size function. This adds pixels to your image and fills them with whatever background colour you have selected.
It changes the size of your image by adding to it, leaving the original image unchanged. The Image Size command on the other hand changes the size of your image by antialiasing it -- a process of removing the uneven lines in an image.
~ Change the width number from 137 pixels to 200 pixels. The Placement graphic gives you a choice of where the extra pixels will go -- to the left, to the right of your image, or on either side of your image.
~ Leave the original image centred, which is the default. Your image should now be an almost-perfect rendition of the original image.
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