3. After clicking Save As, the save format in the save page is set to PSD, and then click Save.
4. Click Save PSD format file, and the PSD file is ready.
It's ps software, photoshop, not psd, psD is a format of PS software. Ps is a professional image processing software. If you have the conditions, you'd better go to a training class to learn, because it is more targeted and professional, and it can't be made clear in one sentence, not in a few words. If you don't have time to study professionally, it's better to download the tutorial of ps online and follow the operation step by step, or buy a book with examples to follow the operation. Remember, books and online tutorials should be the same as the downloaded software version. Otherwise, some steps may be different. In addition, there are some quick-acting processing software on the Internet, you can search and have a look.