You can convert any app page
that has the Render PDF tool to a PDF document. This tool
converts the displayed page: it does not convert any checked-in files to the PDF format.
If a page does not contain the PDF tool, that page does not support PDF rendering.
The app
uses the printer-friendly view of the page to generate the PDF file. This view shows
images for form pages, but not for structured content (table) pages.
Note:
Render PDF is not available for mobile devices.
Click > Render PDF in the page toolbar.
A Save As dialog box opens, prompting you to name the
PDF.
Enter a name for the file and select a directory, then click
Save.
> Render PDF 
in the page toolbar.