Save and analyze PDF web report

I need to analyze a dynamically generated WEB PDF report.
In this case, there is no hard copy and the URL cannot open it.
The solution I can see now is to save the report in PDF format and then open pdf file, copy some fields information and deleting it.
Is this a way to save a web report as pdf without clicking on Download and Save options on the webpage? If the solution exists Robot Framework or Python? if you have example it will help… Thank you