An Adobe Acrobat Developer primarily works on Adobe Acrobat software, which is used for creating, editing, and managing Portable Document Format (PDF) files. They develop and implement new features, improve existing functionalities, and fix any bugs or issues. Their responsibilities also include ensuring software compatibility with different operating systems and devices. They may also design and develop interactive PDF forms, integrate Acrobat software with other systems, and ensure document security. They need a strong understanding of programming languages and Adobe Acrobat SDK. Moreover, they work closely with other team members, providing technical support and guidance when needed.