It's located at https://www.pinterest.com/. If you're already logged into Pinterest, this will open your home page.

If you aren't logged into Pinterest, click Log in in the top-right corner of the page, enter your username and password, and click Log in.
 You'll see this in the bottom-right corner of the window. Doing so will prompt a pop-up menu in the bottom-right corner of the window.

If you haven't downloaded the "Pin It" button, you may receive a notification asking you to download it. If so, click Not now and click + again.
 There are two options here:


Upload a Pin - Allows you to upload a photo or video from your computer.

Save from a website - Allows you to search for pin-compatible posts on a website.
 Your process for doing so will vary depending on the option you selected:


Upload a Pin - Click Choose photo, select a file location, click on a photo or video, and click Open.

Save from a website - Type a link into the text field in the "Save from a website" window, click Next, and click Save in the top-right corner of the photo's icon.
 Doing this will add your selected item to the board in question.

You can also add a description to your uploaded item by clicking the text field below it on the left side of the page.
You can click Create board to add your item to a new board.
Go to the Pinterest website.
Click +.
Click an upload option.
Open the item you wish to pin.
Click a board's name.
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