Baryta paper is a type of high-quality fine art paper that is used for printing photographs and fine art prints. The term "baryta" refers to the use of barium sulfate as a coating on the paper, which provides a smooth, glossy surface that closely resembles traditional darkroom papers.

Baryta paper has a number of characteristics that make it ideal for fine art printing. It is heavy and stiff, with a bright white color and high level of gloss, which provides a sharp, vivid appearance for images. The barium sulfate coating also helps to increase the paper's D-max, which is the measure of the darkest black that can be achieved in a print. This results in a high level of contrast and color saturation in the final print.

In addition to its visual qualities, baryta paper is also known for its archival properties. It is acid-free and pH-neutral, which helps to ensure that the print will not yellow or deteriorate over time. This makes baryta paper a popular choice for fine art photographers and artists who want to create long-lasting, museum-quality prints.

Baryta paper can be used with a variety of printing technologies, including digital and analog printing methods, and is compatible with both dye and pigment-based inks. It is often used in combination with high-end fine art printers, such as large-format inkjet printers, to produce prints that have the look and feel of traditional darkroom prints.