Mac Adobe Acrobat Xi Pro Keeps Asking For Serial Number

You can’t do without the serial number while you install, reinstall, or activate Adobe Acrobat (9/X/XI Pro) or other versions of Acrobat. If you are planning on reinstalling or transferring Adobe Acrobat to a new computer but can’t find the serial number, this could be quite troublesome. But take it easy. As long as Adobe Acrobat has been installed on your computer, the serial number has been stored in your Windows Registry. You have some options to find serial number for Adobe Acrobat on your computer.


Adobe Acrobat XI pro is considered as a very beneficial tool that has been created and designed by very well-known company ADOBE developers. The Adobe Acrobat XI pro is widely used for the purpose of editing, reading, writing and converting all kind of PDF files.

Option 1: Find serial number for Adobe Acrobat with product key finder

It should be the easiest and quickest way to use a specialised product key finder program.

Step 1: Download, install, and then launch the iSumsoft Product Key Finder program on your computer on which Adobe Acrobat has been installed.

Step 2: Click on the Start Recovery button near the lower left corner.

Step 3: It will quickly find all the product keys or serial numbers for all software product including Adobe Acrobat on your computer and shows them in the list.

Step 4: Click on the Save button or the Save to File button to save the serial numbers into a Notepad. Then you can open the Notepad to view the serial number when Adobe Acrobat asks for a serial number.

Option 2: Find Adobe Acrobat serial number in Windows Registry

At the beginning of this article, I mentioned that serial number has been stored in system Registry as long as the genuine Adobe Acrobat has been installed. So you can manually open Windows Registry to find the serial number.

Step 1: Press Win + R to open Run dialog, type regedit, and click OK.

Step 2: Confirm the User Account Control if prompted.

Step 3: The Registry Editor opens. Navigate to HKEY_LOCAL_MACHINE -> SOFTWARE -> Adobe -> Adobe Acrobat -> 9.0 -> Registration. There in the right pane you can find the serial number.

Tips: If your Windows version is 64-bit, navigate to HKEY_LOCAL_MACHINE -> SOFTWARE -> Wow6432Node -> Adobe -> Adobe Acrobat -> 9.0 -> Registration.

Step 4: But the serial number you can see is a series of encrypted number instead of the real serial number you can use to install Adobe Acrobat. You have to use a product key generator to decrypt the serial number.

Option 3: Ask your Adobe Acrobat provider for the serial number

Mac Adobe Acrobat Xi Pro Keeps Asking For Serial Number

You can ask the provider from whom you got or bought Adobe Acrobat for the serial number. If you bought it on the Internet, you may be able to find the serial number in your email box.

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Are you prompted to enter a serial number or sign in with your Adobe ID when you start Acrobat Pro DC or Acrobat Standard DC? There are several reasons why you may be getting this prompt:

Mac Adobe Acrobat Xi Pro Keeps Asking For Serial Number
  • You may have installed the wrong version of Acrobat DC.
  • There could be incorrect or missing information in your Acrobat DC subscription account.
  • Your computer may be unable to reach Adobe's activation servers.

The method used to purchase your product determines your launch experience:

  • Classic customers should be prompted for a serial number at the time of installation or launch of the product. Previously referred to as perpetual.
  • Continuous customers should be prompted to Sign In during the launch process. Previously referred to as subscription.

The Acrobat DC continuous and classic versions each use a different installer. If you have installed the wrong version, it's necessary to uninstall the incorrect version before installing the correct version of Acrobat DC. If you receive a serial number prompt or sign in unexpectedly on launch, you must follow this process to install the correct version of the software.

Important: The trial version uses the classic installer. Continuous customers must uninstall the trial version and reinstall using the subscription installer.

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Retail customers

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To install the Acrobat DC as part of the Creative Cloud, refer to the Creative Cloud download, install, and update page.

  1. Log in to Acrobat.adobe.com using the Adobe ID that you used to purchase Acrobat DC.
  2. Click Download Acrobat DC under Download Apps.
  1. Sign in with your Adobe ID.
  2. Follow the onscreen instructions to complete the download and installation of Acrobat DC.

Volume license customers

Volume license software is provided to the IT or packaging department. Contact your IT or packaging department for information on accessing the Acrobat DC installation. The information below is for the IT or packaging department.

Classic version

The classic version is referred to as the perpetual version in previous releases. Access this installer on the Licensing Website.

Continuous version

Access the installer for the subscription installer on the Admin Console.

The serial number prompt may be occurring because your computer is having trouble connecting to Adobe's activation servers. Try working through the solutions in the 'Troubleshoot connectivity issues' section in Sign in, activation, or connection errors | DC, CC, CS6, CS5.5.

Managing a network? See the licensing information in Adobe Creative Cloud Service Access Documentation for IT.

To verify your payment information with Acrobat DC as part of the Creative Cloud, refer to the Creative Cloud manage your membership page.

  1. Log in to Acrobat.adobe.com.
  2. Click your name in the upper-right corner and select My Plan.
  3. Verify that your payment information is valid.

Logging out and logging back in to Acrobat DC resets your account information.

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  1. Launch Acrobat DC.
    • Mac OS: Go to Applications > Adobe Acrobat DC > Adobe Acrobat DC.
    • Windows: Go to Start > All Programs > Adobe Acrobat DC.
  2. Choose Help > Sign Out.
  3. Click Sign Out.
  4. When prompted, sign in with your Adobe ID (usually your email address) and password.

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Macbook Pro Keeps Asking For Keychain Password

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