If you don't have the Acrobat plug-in installed, PDF won't open in Safari. I have found that small PDF files are OK in the browser, but for larger ones, they need the whole app to display them.... Press on the PDF link and select 'download to disk'. I also have never found a control to set that as the default....which I would prefer in all cases....regardless of size. When posting PDFs I always indicate the size in brackets for example: [250 KB] or [1.8MB - Please download to disk] On Nov 13, 2006, at 1:53 PM, bolobar wrote: > Hi-I would like to make a third party PDF viewer my default app. > Presently when I open a PDF file in a browser (Camino, Firefox) it > appears as a web page. I would like to disable this feature and I > can't remember or find out how. No problem opening from a saved > document. Interestingly, Safari opens to a blank page. > Thanks > Bolobar