A pixel is the smallest programmable square-shaped dot on a digital screen. The more pixels an image contains, the higher the resolution.
DPI stands for 'dots per inch', this is the unit of measure of the resolution of a printed piece. Since a higher DPI produces a greater quality, the recommended resolution for high-quality output is 300 dpi.
Raster refers to a digital image composed of pixels on a grid. Changing the size of a rasterized image will greatly affect its quality. File types may include: jpg, gif, png
A vector image is an image composed of points, lines and shapes using mathematical equations. Scaling a vector image does not compromise its clarity or quality. File types may include: eps, ai
GIF stands for 'graphics interchange format', this refers to a raster file format that supports animation and transparency, and displays up to 256 colors.
JPG stands for 'joint photographic electronic group', this refers to a raster file format that uses lossless compression.
PDF stands for 'portable document format', this file format can be universally downloaded to present and share documents.
PNG stands for 'portable network graphics', this web-based file format uses lossless comprehension. A PNG file is ideal for images with transparent backgrounds.
PSD stands for 'Photoshop document', this refers to a file format and extension for working raster image files created in Adobe Photoshop.
ZIP stands for 'zone information protocol', this is a file format that compresses and combines several files into a single, smaller file without losing data when it is decompressed.