How to resize a image proportionally with CSS
To resize a image proportionally with CSS, simply set either width or height to auto. This should also work if the img html tag has width and height attributes set.
How to resize a image in PHP
To resize a image in PHP you can use the following snippet. Sample PHP
How to resize a image using C# or VB.NET
To resize a image using C# or VB.NET you can use the following snippet. Sample C# Sample VB.NET Here are the same methods as Extensions Methods Sample C# Sample VB.NET