Illustrator file type – .AI
Pixel based program – Photoshop (is resolution dependent, which means it has to have the resolution to have a good image)
Vector based program – Illustrator (isn’t resolution dependent)
Photoshop resolution is measured in DPI (Dots Per Inch)
A4 page has a resolution of 300 dpi
Web page has a resolution of 72 dpi
Alpha channel = Transparency of a picture (like .png)
PNG format is a lossless compression file format, which makes it a common choice for use on the Web. PNG is a good choice for storing line drawings, text, and iconic graphics at a small file size. JPG format is a lossy compressed file format. This makes it useful for storing photographs at a smaller size than a BMP
Scalable Vector Graphics – SVG
Illustrator gives you CMYK, Photoshop gives you RGB