Photoshop Document (.psd)

The PSD file extension is used for saving Photoshop Documents, which is Adobe Photoshop's native file format. It is widely popular among artists, designers, and photographers because it can store multiple layers of an image. These layers can include images, shapes, text, and effects that can be independently manipulated. PSD files support various color modes such as RGB, CMYK, grayscale, and more, making them versatile for different design needs. They can retain a large amount of color and image quality information, supporting up to 30,000 pixels in both height and width.

The history of PSD file format is closely associated with the development of Adobe Photoshop. Adobe first developed Photoshop in 1988, and with it, the PSD format emerged as a means to save high-quality, editable documents. Over time, the software and its file format have evolved, maintaining Adobe's legacy as the market leader for image editing. PSD files are essential in digital design and photography manipulation, allowing for complex editing tasks such as retouching and compositing.