Images, whether a .jpeg, .png are most commonly displayed on the web as a bitmap. A bitmap is a piece of text, a drawing, etc., represented, as on a computer display, by the activation of certain dots in a rectangular matrix of dots. When all these small squares are compressed, they become what appears to be text or images. How well compressed these squares are determines the quality or what is represented. The more squares in an area, the better the appearance to the human eye, up to a point, of course.

When you look at a photo and zoom in, you will be able to see what really "makes up" the picture.

The usual way to decrease or increase the size of an image is to decrease or increase the size of the small square, or pixel. Making things smaller increases quality, but making things larger tends to degrade the image and make things look grainy, blurry or, in tech terms, pixelated.



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Loes Premium
Thanks Teresa, you made it very beautiful, I have worked with Irfanview before, great tool, I now have a linux operating system, keep up the good work, greetings Loes
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Trialynn Premium
Thank you Loes, your kind words are appreciated!
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Larry MaC Premium
Good training. Thanks for sharing.
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atlanticus Premium
Very useful, thank you.
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SharonAllen1 Premium
Thanks
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AndreDube Premium
Thank you Therea for this great info! Very useful.
Andre
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Boobooforce Premium
He Andre, did you manage to sell any of the virus protection program once you posted. just curious.
Sam
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AndreDube Premium
Hi Sam, I don't sell virus protection program. I am an IT Consultant, and help people protect their environment, so I sell my time and knowledge :o)
Andre
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