Acrobat failed to connect to a DDE server

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In Acrobat, merging several files into a PDF leads to the error – “Acrobat failed to connect to a DDE server.”

Acrobat failed to connect to a DDE server


Solution 1:

Note: Recommend to use when taking a backup of the Windows registry before making any changes

Step 1: Open the Windows Registry Editor:

  1. Select Start=> Run.
  2. Type “Regedit” in the Open field and choose OK.

Step 2: Navigate to following registry key:

Step 3: Take a backup: Right-click the Application key and export to your desktop.

Step 4: Convert the key “AcroviewA18″ into “AcroviewR18″.

(The value of A and R depends upon the version of Acrobat installed)

Step 5: Close the registry editor and Acrobat.

Discharge again Acrobat and check whether the problem is fixed. If not, try the next approach.

Solution 2:

Step 1: Test whether an Anti-virus program is installed on equipment.

Step 2: If yes, the program is disable. Test whether the problem is solved.

Step 3: Update your Acrobat to the latest version, and test whether the problem is solved.

In order to update automatically from Acrobat, select Help > Check for updates. Making order of steps in the Updater window to download and set up the latest updates.