Adobe (PDF) has its own hyperlinking settings that titleLOOK is unable to override. To open a PDF hyperlink in a new tab, follow these steps in an open PDF document:
1. First, click “File” or "Hamburger" button in the top left
2. Then click on “Preferences” to open the dialog box.
3. Click “General" then check the box next to "Open documents as new tabs in the same window (requires relaunch)"
4. Close out (X) out of the dialogue box and close Adobe and relaunch.
This will permanently change the settings in Adobe and future links will open in a new tab. If this doesn’t work, it may be related to the browser settings so further support with your help desk may be required.