Hi @balanced_mind0168 ,
++Adding to the discussion
This is expected behavior in Adobe Acrobat when tabbed document interface is disabled. With "Open documents as new tabs" unchecked, Acrobat operates in Single Document Interface (SDI) mode.
As @Meenakshi_Negi asked earlier, Could you please confirm which exact version of Acrobat you are using and on which operating system? Thank you!
HERE’S MORE CONTEXT:
- PDF Portfolios were designed as "wrappers" for final distribution. Adobe's user interface (UI) logic prioritizes the Portfolio as the master document in SDI mode. With tabs enabled, Multiple Document Interface (MDI mode), Acrobat treats each file as independent and the issue disappears.
- Recommend enabling tabs (MDI mode) unless there's a specific business requirement to keep SDI mode.
- In SDI mode: Only one main application window is permitted.PDF Portfolios are treated as the primary document window. Opening a second PDF forces Acrobat to restore/activate the existing window (the Portfolio) before loading the new file.
- Root Cause: "Open documents as new tabs" is disabled, forcing Acrobat into Single Document Interface (SDI) mode. In SDI: Acrobat permits only one primary document windowed Portfolio is treated as the active primary window. Opening any external PDF forces Acrobat to restore the Portfolio first, then attempt to load the new file.
SUGGESTED RESOLUTION:
Option 1: Re-enable Tabs (Recommended - 30 second fix)
- Edit > Preferences > General Check "Open documents as new tabs in the same window “, Click OK and restart Acrobat
- Result: Portfolio stays minimized. New PDFs open as tabs and can be dragged out to separate windows
Option 2: Keep SDI Mode, Change Workflow - If user must keep tabs disabled for operational reasons:
- Close Portfolio completely before opening external PDFs - do not minimize.
- Extract files from Portfolio for daily work: Open Portfolio > View > Portfolio > View files in List > Right-click > Extract Files
- Use File > Open within Acrobat instead of double-clicking files in Explorer to reduce window focus issues