What’s the difference between image files that end with .JPEG (or .JPG) and .PNG? A PNG file has transparency whereas a JPEG file will fill all empty pixels with white.
Let me illustrate:
The PWOC logo is a circle. Since an image file has a length and width dimension, it will actually be a square or a rectangle, even when the image isn’t. A PNG file will leave those corners unfilled displaying only the circle (or logo).
A JPEG file, however, will fill those corners with white.
When would you want to use a PNG over a JPEG? When your background color is anything other than white. By the way, both file formats are available in the Resources section of the PWOC website.
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“Tech Tuesday” is published every Tuesday. To reach Tracy with comments or questions, email her here.
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