**Question** Is it possible to view a PDF through an iframe that is stored in a SharePoint 2010 document library? If so, what changes do I need to make to the default document library settings? **Background** I want to display a PDF that is stored in a document library through an iframe. Currently this works without any issues when the PDF is stored in a _layouts sub-folder. When I store it in a document library I'm only given the option to save it locally. Below is the test HTML I used to validate this. <html> <body> Document Library: Forces user to download the document <iframe height="300" width="300" src="http://sprocks/Shared%20Documents/test01.pdf" /> _layouts sub-folder: Renders as expected in the iframe <iframe height="300" width="300" src="http://sprocks/_layouts/CachedReports/test01.pdf" /> </body> </html>