Verify that the digital signature states:
Adobe Reader runs in "Protected Mode" by default. When using the ActiveX control, developers must ensure that the embedding application respects these sandbox boundaries. Disabling Protected Mode to facilitate legacy ActiveX functionality exposes the host system to memory-based exploits.
Navigate to the Adobe installation directory (typically C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\ ). Right-click on AcroPDF.dll and select . Switch to the Digital Signatures tab. Select the signature from the list and click Details . adobe reader activex download verified
signtool verify /pa /v "C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroPDF.dll"
Adobe signs all official installers with a digital certificate. Before running the installer, you must verify this signature. Verify that the digital signature states: Adobe Reader
Once the verified Adobe Reader installation is complete, developers can utilize the ActiveX object within their development environments. Locating the DLL
Select the add‑on and click (the button toggles depending on the current status). Enabling the add‑on tells Internet Explorer to use the Adobe PDF Reader ActiveX control to open PDF files directly inside the browser. Select the signature from the list and click Details
: In Internet Explorer , you can manage this component by going to Tools > Manage Add-ons and ensuring the Adobe PDF Reader add-on is enabled. Note that modern browsers like Chrome or Edge use extensions or built-in viewers rather than ActiveX.
Choose the correct version of Windows for your environment.