Image formats

Dreamweaver CS5 supports various image formats that can be used in web design. Here are some of the most common image formats supported by Dreamweaver CS5:

JPEG (Joint Photographic Experts Group): This format is commonly used for photographs and images with lots of colors. It uses lossy compression to reduce the size of the image, which can result in some loss of quality.
GIF (Graphics Interchange Format): This format is commonly used for images with limited colors, such as logos or icons. It uses lossless compression to reduce the size of the image, which means that there is no loss of quality.
PNG (Portable Network Graphics): This format is commonly used for images with transparency or for images that require high-quality graphics. It uses lossless compression and supports alpha channels, which allows for transparency.
BMP (Bitmap): This format is commonly used for images with simple graphics and no compression. It is not recommended for use on the web due to its large file size.

When using images in Dreamweaver CS5, it is important to optimize them for the web to reduce their file size and improve their load time. This can be done using the Save for Web feature in Adobe Photoshop or other image editing software. Additionally, it is important to consider the resolution and dimensions of the image to ensure that it displays correctly on different devices and screen sizes.