PSD (Photoshop design file), Photoshop Document, which is a file kind of Adobe. Software most commonly used for the design-to-code process and used for web design to HTML makes development workflows more convenient to be used to be one of the best ways to make websites. There are major reasons and an objective of why shifting to PSD to HTML used to make it more useful and gives a working sense.
PSD files majorly open and get edited with Adobe Photoshop, files other than Photoshop will not be able to fully edit or even read the complex layers.
PSD to HTML workflows used to be one of the best ways to make websites. Designers would create shadows and rounded corners as images, and then clever coding tricks were used to place the imagery on the page. The first reason is for image assets. Before browsers supported all the wonderful features of modern CSS (drop shadows, rounded corners, gradients, and more) it was very difficult to create cross-browser effects without the use of images. These assets would need to be realized no matter what, so creating them at the same time as the high fidelity mockup actually saved time. Working with Photoshop from the beginning to ensure it will be universally accessible by designers and developers.