Error 2148073513 When Attempting To Digitally Sign In Acrobat 11 Standard

Question

I'm attempting to use Acrobat 11 Standard to digitally sign a PDF document with a 2048 bit certificate from our internal certificate authority, and I'm receiving the following error:
Error encountered while signing:
The Windows Cryptographic Service Provider reported an error:
The requested operation is not supported.
Error Code: 2148073513
The operating system is Windows 7 Enterprise x64.  When I remove Acrobat 11 Standard and install Acrobat 9 Standard on the same Windows 7 system, I am able to successfully sign the document using the same certificate that was giving the error with 11.  Also we have been using Acrobat 9 on Windows XP with these same certificates for a long time and never encountered issues with digitally signing.
Any ideas of what might be causing this issue? 
Thanks in advance
Josh

Answer 1

Hi Josh,
The error message comes from Windows (not Acrobat), but Acrobat 11 is probably asking Windows to do something that it can't. What it is I don't know because the error message is too vague. One thing we can do is to take Windows out of the picture and see if you can sign when Acrobat accesses the digital ID itself as opposed to asking Windows to do the work. This is a two step process, first, export the digital ID from Windows into a file, and then import the file into Acrobat (it's not really an import, but I'll leave it at that for now).
Step 1 - Export the Digital ID
Launch Acrobat
Select the Edit > Preferences menu item
Select Internet from the Categories list box
Click the Internet Settings button
Select the Content tab on the Internet Properties dialog
Click the Certificates button
Highlight your digital ID and then click the Export button
Click the Next button on the Welcome panel of the Certificate Export Wizard
Select the Yes, export the private key radio button, and then click the Next button. If this radio button is disabled you can stop here and let me know that the private key is not exportable
Select the Include all certificates in the certification path if possible checkbox & the Export all extended properties checkbox and then click the Next button. Only select the top and bottom checkboxes, DO NOT delete the private key!
Create passwords for the file and then click the Next button. You will need this password to sign with so make sure it is something you can remember.
Pick a file name and location. Browse for a location you can remember as you will need to know where you put the file in order to use it to sign with. Click the Next button.
Click the Finish button
Click the OK button on the confirmation dialog
Click the Close button on the Certificates dialog
Click the OK button on the Internet Properties dialog
Step 2 - Add the file to Acrobat
Select Signatures from the Categories list box
Click the More button in the Identities & Trusted Certificates group box
Click the Add ID toolbar button
Click the Next button
Click the Browse button
Navigate to and select the file you exported above and then click the Open button
Enter the password you used above and then click the Next button
Click the Finish button
You will see two items in the list box with the same name. Highlight the one whose Storage Mechanism is "Digital ID File"
Click the Usage Options toolbar button and then select Use for Signing
Close the Digital ID and Trusted Certificate Settings
Click the OK button on the Preferences dialog
The next test is to see if you can sign a file. Please let me know if it works or not.
Thanks,
Steve