To copy the words on the PDF1, you can use some PDF-editing tools or software, such as Adobe Acrobat, Gimp, Sublime Text, etc. These tools or software can open a PDF-file, select the text that needs to be copied, and then copy it. In most operating systems and browser, you can use shortcut keys or menu commands to copy the text in the PDF. For example, you can copy text using the "Control + C" key combination or clicking on the text box in Windows, and you can copy text using the "Command + C" key combination or sliding the text box in the macs. After copying, you can save the PDF-file as a text file so that you can use it again later.