PDF contents updating and automation

I have a PDF with images and text contents. The contents have been copied and pasted manually from 3 different websites. As the contents in the 3 websites are changing every day, I need to make my PDF automated and updated accordingly every day. So instead of copy and pasting the contents from the 3 websites and putting them in my PDF manually, I need the PDF updating the data automatedly every time the contents change happens in the websites. Please message me for further information. Thanks.