I am facing a problem downloading a PDF file from an URL in HTML, I am using download attribute and embedded pdf file from URL but cannot work. Because the client said must use PDF URL embedded in the download attribute. Below is my sample coding:

<a href="http://www.africau.edu/images/default/sample.pdf" download><button style="background-color: #e51b2a; color: white; border: none; height: 8%; border-radius: 8px;" type="button">Download</button></a>

I want the expected result is to click the download button and direct to download PDF from URL. Hope someone can guide me on how to solve the problem. Thanks.