Licensed Version of Acrobat XI Pro reverted to trial version

I'm having this "trial version" problem with Acrobat XI Pro on MacOS 10.12. I don't think the procedure described at http://helpx.adobe.com/creative-suite/kb/trial--1-launch.html is relevant because the issue description says "You have previously subscribed to Creative Cloud and signed in with your Adobe ID to license the software." Creative Cloud is not involved, as far as I know. Acrobat worked fine for years until about a month ago. In my case, this copy of Acrobat is a fully licensed copy of Acrobat installed from a DVD. I'm unsure whether re-installing would do any good, and I'm reluctant to try it because this machine has no DVD drive and re-installing would be a hassle. Any other ideas much appreciated.

Please post the exact version on the client's computer. Were these retail licenses or volume licenses?

Same problem here. A year ago one of my customers bout 2 licences of Acrobat Pro (NO 1 year licence like they sell today, but the 500 dollar full version) Suddenly a few weeks ago one of the licences stopped working and shows me I have 0 days left. I spent over 5 hours chatting with different Adobe Helpdesk specialists and basically got nowhere. All they could tell me was to try to migrate the licence key to another account (a very, VERY painstaking experience) and thats it. Still not working, still got 0 days left, licence still not activated.

I'd like to know more about this, because we are seeing more and more of this problem. I wonder if Adobe introduced a new kind of volume license a while back and the first ones are just expiring. Business software licensing | Adobe Volume Licensing lists four kinds of volume license, two of which expire. For instance VIP is certainly for Acrobat, and expires annually. You probably have no way to check this now, but there is every chance that your subscription came up for renewal, and your former employee, understandably, decided not to renew it.  It gets confusing because for retail purchases of subscriptions there are no serial numbers, but volume licenses can both expire AND have serial numbers.

As we move to a subscription model increasingly (there is NO CHOICE for retail customers of Creative Cloud, for example), corporate purchases are likely to go the same way, and the era where you ended up with "free gift" purchased software on a laptop because the company was too kind or disorganised to take the software back may be about over.

Help! I've got the same problem -- Acrobat Pro XI on two different computers with two different OS's suddenly reverted to trial. I only have one of my license keys, and entering it now gives back an error that the license key is invalid. Totally infuriating.

Just to update on my issue (slightly different from Mr. Finn's) -- the IT folks at work have no idea why my software suddenly reverted to trial versions, but adding the serial number that they had on record worked. It turned out that all of my Adobe software was doing the same thing and the Acrobat serial number seemed to work for all Adobe products. It is possible that they never disabled the software on my old computer and the licensing ran out on that.

Dona

I am having a similar issue (I think). I downloaded Acrobat XI as part of my Creative Cloud subscription. I have been using, and enjoying the program for a while now. In the last couple of weeks however I am getting a pop-up window that says the trial is almost over. I don't know why this is happening. My creative cloud membership is not close to expiring. I don't recall downloading a trial version and I would have no reason to as it comes with my CC license. When I check my creative cloud folder it indicates that Acrobat XI Pro is up to date.

How do I turn the trial version pop-up off, and what will happen when the trial version period ends?