Downloadand installation help for Prodesigntools links are listed on most linked pages. They are critical; especially steps 1, 2 and 3. If you click a link that does not have those steps listed, open a second window using the Lightroom 3 link to see those 'Important Instructions'. window using the Lightroom 3 link to see those 'Important Irecently installed my Acrobat X Pro copy on my new Windows PC. After several times of using it, a window started popping up upon each use, saying that the serial number is invalid for Acrobat Pro (and a count-down for buying the product within 30 days). Stepsto add a certificate-based signature to a PDF. Open a PDF in Acrobat and choose All Tools > more > Use a certificate in the global bar. Alternatively, from Acrobat Home, select See all tools. In the Protect section, select Use a certificate, and then select a file you want to certify. The Use a certificate tool is open on the left pane. CommunityExpert , Jan 29, 2016. the serial number is 6 groups of 4 numbers, Find your Adobe product serial number quickly. open acrobat and click help>activate (or register or something similar) to enter your serial number. if you only see help>sign in you may have the subscription version of acrobat dc. Upvote. Thankyou for the response. The problem persists. Attached is the pop-up window: when I key in the serial number (in the area which I've grayed out to conceal - 13939831. Acrobat X Pro Serial Number Issue Ron31107412vlp5. Adobe Acrobat Feature & Workflow. Edit PDFs. Edit Scanned PDFs. PDF Forms. Sign a PDF. AdobeEmployee , Oct 24, 2018. It's there, but you need to look for it. Here is an edited formatted output from the SWID tag ETK script and an Acrobat XI install. Notice the Bold Underlined Italicized item " channel_type: " that says " SUBSCRIPTION ". machine_name: COMPUTER_NAME. AdobeAcrobat 9 Pro - Volume License. Adobe Acrobat 10 Standard - Volume license. I have the key for both. All is legal, however, for some crazy reason Adobe does not allow download of previous versions of its products. I need a link to download or a copy of ISO if anyone has it. Willing to pay for DVD cost and shipping if Findlicenses and terms for Adobe products and services. Note – in some Adobe agreements, these terms are referred to as End User License Agreements (EULAs). Acrobat Pro 2017. Adobe Software License Agreement - Acrobat. Acrobat Pro 2017 (applies to all purchases post-September 1, 2021) SlAHM4.