It will fade with time. Due to the special process of developing photos, the preservation time is permanent. Printing photos is different from any other imaging method. It is a chemical reaction, which makes the color gradually generated from the inside out, so its color has strong stability. In addition, the printed photos have a long history and the images are kept for a long time.

Digital printing technology belongs to the frontier technology of photosensitive industry. Digital printing is the whole process of digital input, image processing and image output. Digital printing adopts the method of color expansion. Digital printing exposes digital images on color paper and outputs color photos. Digital printing is a high-speed, low-cost and high-quality method to make digital photos.

Extended data:

Photos are developed with light as a brush, with natural, delicate and realistic colors, excellent clarity and reproducibility, stable images and a long history. Widely used in all kinds of images in residents' daily life, travel and parties.

Ink-jet printing is cheap and easy to get, and the entry threshold is low. Therefore, it is often used for fast printing at the entrance of tourist attractions, printing on WeChat printers in shopping malls, and printing photos and certificates of life in remote cities and rural areas.

Short board printing is widely used in large format commercial advertisements because of its fast output speed and low cost of consumables. A large number of low-cost image printing such as assembly line desk calendar production and book printing.

Baidu encyclopedia-photo printing