When you click a PDF link in most browsers, the browser opens the PDF preview in a web browser window. To download a PDF and not preview it, you need to change a setting in your browser.
Set Chrome / Brave to Download Instead of View a PDF in Popup
Google Chrome uses its built-in PDF viewer to let you preview PDFs. If you turn this viewer off, Chrome will prompt you to save your PDFs rather than preview them.
Start by launching Google Chrome on your computer.
When Chrome opens, click the Chrome menu (three dots) in the top-right corner of your window, then select "Settings."
In Chrome settings, click "Privacy and security" in the left sidebar. Click "Site Settings" on the right.
Scroll down in Site Settings and click "Additional content settings" at the bottom.
In the expanded menu, select "PDF documents."
Toggle on the "Download PDF files instead of automatically opening them in Chrome" option.
Chrome will now display the standard save prompt for PDFs.
Set Firefox to Download a PDF Instead of View it in a Popup
Mozilla Firefox also has a built-in option to let you download PDFs instead of previewing them in this browser.
To get to that option, launch Firefox on your computer.
In Firefox, click the menu (three horizontal lines) at the top-right corner of the window and select "Options."
In Options, click "General" on the left. Scroll down the right pane until you see the "Applications" section.
In the Applications section, click the option next to "Portable Document Format (PDF)" and choose "Save File."
Set Edge Save PDFs Instead of View it in a Popup
Microsoft Edge uses the built-in PDF viewer to let you preview files. Turn this option off, and the browser will save your PDFs instead of previewing them.
To do that, launch Microsoft Edge on your computer.
When Edge opens, click the menu (three dots) at the top right corner of the window and select "Settings."
In Settings, click "Cookies and site permissions" on the left, and then select "PDF documents" on the right.
Turn on the "Always download PDF files" option here.