Resizing of images is very important when designing web applications, as you don't really want to have 4 megabyte images displayed on your web pages. Ideally you want to create a thumbnail image of those, and display that. When the user clicks on this image, then display original Image.

Sometimes the standard functions for converting images to jpeg's isn't of a high enough quality. Perhaps you are converting map images or high resolution text documents, where the jpeg artifacts are easily seen.

Many applications require that images are dynamically created especially for the user in websites. I normaly do this when ploting graphs or adding watermarking on images as they are displayed instead of having numerous duplicated saved images on the server.

Adding text to a bitmap requires you to first select the font to use and the colour of the brush to use. The example below loads in a .png file and adds the text "SOLD".

Rotating an image can be usefull when dynamically adding items to an existing image, such as adding a "SOLD" stamp across a products image.

You should have your image stored in the "myimage" variable, and then use the below code to convert to a .Png format and save into the "mybytearray" array.

The binary array "mybytearray" should contain your image data, then use the below code to convert this into an image usable by VB.Net.