Re: PDF Error Combiner is Not Working with Active Subscription/License Acrobat In previous versions of Acrobat, the 'CombinedFiles' command in 'Combined Files Options' and 'Combined Files — Options' would give the error: [ERROR: Combining Files was unable to merge your PDF files into a combined .PDF file and your license has expired!] How do I get the files back? Acrobat Pro DC is not available through the default start-up path, and when asked to start, Acrobat asks to sign in. This results in a warning message which will be removed when the user installs the latest version of Acrobat DC. Acrobat 5-9 When asked for password to access the Acrobat account, users are not prompted to enter a password when first starting Acrobat DC since the password is provided automatically when Acrobat DC starts. Users can instead enter 'Admin' or 'Super Administrator' credentials in addition to the default password, and this enables the User Account Control feature to be enabled in the Acrobat Management Console (AMC) which then allows Acrobat to sign in to the Acrobat user account. The following screenshot shows the AMC 'Admin' and 'Super Administrator' login screens. Note that the login page has a 'Welcome' option to give users a new password. Once that password has been entered and the new account has been created in the AMC, it is removed from the AMC and replaced by the new password after the user logs out. Acrobat Pro Desktop Acrobat Pro for Mac Acrobat Pro for Windows Adobe Support Information This version of Adobe Support has not been updated in 5 years. It could be that Adobe has stopped producing and delivering updates. If you find a newer version of this support information on another site, please let us know and add it here. Adobe has confirmed that this issue does not affect Adobe Creative Cloud. You can check out the latest release here. Download and Installation Download Adobe Acrobat Reader version 10.0.17 (English) from here. To install this latest release of Adobe Acrobat Reader (English), you must not have a previous version installed. If you're on a Windows computer, use the 'Run Adobe Acrobat Reader As Administrator' option from the Acrobat menu. Click the 'Update' button to download the latest version (English). Extract the zip file to a local folder.