Blend Space

What is a Blend Space?

In the context of PDF documents, a blend space refers to the color model or color space used to blend transparent objects. When multiple transparent elements overlap in a PDF, such as images, text, or shapes, the blend space determines how their colors are combined to produce the final appearance.

Blend spaces can be specified globally for the entire PDF document or individually for each transparent object. Common blend spaces used in PDFs include RGB (Red, Green, Blue), CMYK (Cyan, Magenta, Yellow, Black), Lab, and Gray, among others. The choice of blend space depends on factors such as the intended output, color accuracy requirements, and compatibility with printing devices.

Selecting the appropriate blend space is crucial for achieving accurate color representation and seamless blending of transparent elements in PDF files. It ensures that the visual integrity of the document is preserved across different viewing and printing environments.