You can use this technique to download any
website as pdf. Let’s download this bird article from Wikipedia
as a pdf file. Go to the article. Now go to the options up here. Click print or hit ctrl + p. Select this option save as pdf. If you want to print this my recommendation
is to choose A4 Paper size and deselect this headers and footers. It will look better. And hit save. Now you can open this website article as pdf. Have a nice day and bye-bye!