No legitimate portable update exists. PortableApps.com offers a portable version of Adobe Reader DC, but not Reader 9.
This comprehensive guide covers everything you need to know about finding updates for Adobe Reader 9, the risks involved, and why it might be time to finally let go of this legacy software.
The keyword is a digital dinosaur trap. There is no safe, official update. By moving to a modern reader, you gain faster performance, better security, and compatibility with all the PDFs you encounter today—without paying a cent.
If you need the for legacy purposes (e.g., running on Windows XP or an old offline computer):
