Linked pdf files in Links or on the Details/Links tab of Opportunity or Projects do open automatically in Adobe Acrobat Reader when selected instead of showing in preview pane.
This is especially inconvenient when the PDF file is the first in the Links or Details/Links list as when the tab is selected it automatically loads the pdf in the external application.
- In Internet Explorer select Tools >> Manage Add-Ons
- In the Add-on Types column select Show All add-ons
- For Adobe PDF Reader ensure the status is Enabled
- If it is not, select the Enable button and Close
Enabling this setting will cause that pdf-files will also loaded in the browser window when opened via a hyperlink (this is described KM Article # 15571 - When clicking on a hyperlink in an email to use the file option with the full path, it now opens in a browser window rather than Windows File Explorer. The files appear, but in the default browser, not Windows Explorer.