Invalid serial number

an invalid serial number is not the same as a revoked serial number message.

if you saw an invalid serial number you either made an error when entering the number OR you have the wrong installer.  details:

assuming you're using a valid adobe serial number (6 groups of 4 numbers), you have a mismatch between your installation file and serial number. ie, you can have a valid serial number, but if it's for program A and your installation file is for program B, you will see an invalid serial number message.

common mismatches are language/region (eg, serial number is for western europe and installation file is eastern europe), platform (eg, serial number is for a mac and installation file is win), license type (eg, education vs enterprise vs individual). and one of the most common is using a program installation file with a suite's serial number. eg, using a cs6 suite serial number with a photoshop cs6 installation file. that won't work even though photoshop is included in that suite.

you must use the (correct) suite's installation file (and you can choose to only install one program from the suite). here's official info about that error, http://helpx.adobe.com/creative-suite/kb/error-serial-number-valid-product.html

Thanks for your question, Lewiskev58. You can find several reasons that the license for Acrobat was revoked. Please see https://adobe.ly/4d5nywa for more information, and click on the chat icon at the bottom of the page if you would like to speak with someone further about the validity of the license you purchased. ^JW

Did you register your number with Adobe... does it show on your account?

-Log in to your Adobe account and click this link https://account.adobe.com/products

Nobody in a public forum can help with a serial number... some past discussions

Invalid Serial Number https://helpx.adobe.com/x-productkb/global/invalid-revoked-serial-numbers.html
-https://community.adobe.com/t5/Get-Started/I-purchased-CS5-years-ago-but-attempts-to-download-it-now-fail/td-p/9246661
-and revoked volume number https://community.adobe.com/t5/Get-Started/Feeling-cheated-CS6-serial-number-revoked/td-p/9807405
-Problems with software validation https://community.adobe.com/t5/Get-Started/Has-anyone-had-a-POP-UP-problem-I-get-a-pop-up-window-that-tells/td-p/8794013
-Warning that software is not genuine http://www.adobe.com/genuine.html