Thjis is the Reader forum; you should post your question in the Acrobat one,
When you do, don't forget to include the necessary information for others to understand your problem.
Just download the trial version, then use your serial number to activate the product.
What if I don't know where to find my serial number?
Please see this document for information about locating your Adobe serial number: Find your serial number quickly.
And, you can download Acrobat from this page: Download Acrobat products | Standard, Pro | DC, XI, X
[discussion moved from Reader forum]