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molly cross
molly cross
Participant
January 29, 2026
Question

I have Adobe Acrobat XI Pro, when trying to open I get error advising that the serial number has reached its limit of activated devices

  • January 29, 2026
  • 1 reply
  • 47 views

I have Adobe Acrobat XI Pro, when trying to open I get error advising that the serial number has reached its limit of activated devices.

I have logged into the account online and it shows no activated devices. I have tried reinstalling Adobe (including restarts) but get the same error. 

I have contacted Adobe support who raised this ticket ADB-43702569-F4Q4 but advised I would get quicker support by raising the issue on the forum. 

    1 reply

    creative explorer
    Community Expert
    creative explorerCommunity Expert
    Community Expert
    February 1, 2026

    ​@molly cross oh wow, that is old!  Did you recently just get this? or do a recent update to your computer? Because Adobe Acrobat XI Pro (came out in 2012) is so old that it ended it’s support way back in 2017, 9 years ago. 

    Make sure you are correctly log-in into the correct Adobe ID. I had a very old email that was associated that I no longer used, and thankfully, I had an old secondary email attached as well. I had to open in a private browser, pick the correct account. 
     

    And work yourself to your activated device, as you can see, mine is from 2020
     

     
    And my invoice is from 2016
     

    And yes​ — I am currently using a different email than the one shown here. So, make sure you are log into the correct account. ​​​​​​

    m
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