Hi, my name is Kelly, and I'm an independent consultant and I'm here to help.
To make sure that PDF files always open in Adobe Acrobat Reader instead of the browser, you can try the following steps:
Open Adobe Acrobat Reader.
Go to Edit > Preferences.
In the Categories section on the left, select "General".
Under "Basic Tools", click on "Select Default PDF Handler".
Select "Adobe Acrobat Reader DC" from the list and click "Apply".
If the above steps don't work, you can try the following:
Right-click on a PDF file in Windows Explorer.
Select "Open With" and then "Choose another app".
Select "Adobe Acrobat Reader DC" from the list and check the box that says "Always use this app to open .pdf files".
Click "OK".
If the issue persists, you may want to check your browser settings to make sure that it is not set to open PDF files in the browser by default. Here's how to do it for some common browsers:
Microsoft Edge:
Open Edge and click on the three dots in the upper right corner.
Select "Settings" and then "Cookies and site permissions".
Scroll down to "PDF documents" and toggle off the switch.
Google Chrome:
Open Chrome and type "chrome://settings/content/pdfDocuments" into the address bar.
Toggle off "Download PDF files instead of automatically opening them in Chrome".
Mozilla Firefox:
Open Firefox and type "about:preferences" into the address bar.
Click on "Applications" in the left-hand menu.
Scroll down to "Portable Document Format (PDF)" and select "Use Adobe Acrobat Reader DC (in Firefox)" from the dropdown.
I hope this helps! Let me know if you have any further questions.