If the PDF application is Adobe Reader, uninstall all versions of Adobe Reader from your computer (see Adobe's instructions for uninstalling for Reader versions 8 and above) and then reinstall the latest version from Adobe's download page. If you still can't view a PDF file in Firefox with the Adobe PDF plugin, see the Adobe help page How to use OneDrive Files On-Demand on Windows 10 Microsoft's OneDrive now lets you view your files without having to download them using on-demand sync. Here's how it works. Save the file on your PC in the default download location. After Internet Explorer runs a security scan and finishes downloading the file, you can choose to open the file, the folder it's stored in, or view it in Download Manager. Save as a different file name, type, or download location on your PC. Run the app, extension, or other file type how can i open a pdf file without downloading and saving it IE9 is a terrible program that does not work well. All one has to do is look at the messages to realize how bad it is. See a list of files you’ve downloaded. On your computer, open Chrome. At the top right, click More Downloads. To open a file, click its name. It will open in your computer's default application for the file type. To remove a download from your history, to the right of the file, click Remove . The file will be removed from your Downloads page Use this to embed your PDF file without save and print options [code]