Process
Rasterize
Convert a vector file into a pixel-based raster image at a specified resolution.
Definition
Rasterize means to convert a vector file (SVG, AI, EPS, PDF) into a pixel-based raster image at a chosen resolution. The conversion samples the mathematical curves of the vector and rebuilds them as a grid of pixels. Once rasterized, the image is resolution-locked. Enlarging a rasterized file past its native resolution produces pixelation. In a production print workflow, rasterization happens automatically at the RIP step when the file is sent to the press. Submitting a vector file is preferred because the RIP can rasterize at the optimal production resolution rather than the customer guessing at DPI in advance.
Related Terms
Vectorize
Convert a raster image into a vector file made of resolution-independent paths and shapes.
DPI
Dots per inch. The resolution measurement for raster images, with 300 DPI as the production standard.
Resolution
The pixel density of a raster image, typically measured in DPI at the intended physical print size.
RIP Software
Raster image processor software that converts artwork files into the press-specific instruction set for printing.