Acrobat X and Adobe Reader X support viewing PDF files inside the Safari browser on Mac OS X. Acrobat X and Reader X do not support any other browser, such as Firefox or Opera. For more information about system requirements, click these links for your product: Acrobat X Pro, Acrobat X Standard, Adobe Reader X.
Adobe PDFViewer for Mac OS X requires the following system requirements:
- Safari 4 for Mac OS X 10.5.8 and Mac OS X 10.6.4
- Safari 5 for Mac OS 10.6.4
- Acrobat and Reader via AdobePDFViewer Safari plug-in are 32/64-bit (64-bit available in Safari 10.6)
Note: If you don't have Acrobat or Reader, or haven't installed the PDFViewer plug-in, then Safari shows PDF files using the Mac OS X native PDF support. Support for many Adobe PDF workflows (such as the Collaboration feature or many Forms and Security features) is unavailable.