From the menu bar, go to "File," then select "New from Clipboard." This should place the previously selected and copied image subject ... to keep the background transparent. Make sure the checkbox ...

You can create a new PSD file with a transparent background and paste elements of an existing image to it. You can also take an existing image and export it as a PNG or GIF file with transparent ...

The background of the page is visible through the transparent areas of the photo, which blends it in better. Creating this effect can be done for free using the Pixlr online photo editor.