Download a file .pdf from site

Job ID: 37103744

Budget: $20 – $40 USD

I need a program, script, solution, to perform the following actions on windows server:

a. download a .pdf file from a site (the link is always the same)
b. Rename and Save it in a specific folder (example c:\test\pdf\here.pdf)
c. Loop every 4 hours


thank you