Enable PDF Download in IE
We often face a common problem while downloading a PDF file that the browser does not prompted to save .pdf file after clicking download link, instead it opens pdf file directly in the browser.
When you click a link to a .PDF document, one of the following may happen depending upon the setting you chose in Adobe Acrobat Reader Preferences:
If you don't want any of the above actions to happen when you click a PDF link (or a form button or javascript in a page launches the PDF file) in a website, and if you want the Open/save prompt for PDF files, use the following method.
The following solution is tested in Acrobat Reader v7.0
HKEY_CLASSES_ROOT\AcroPDF.PDF.1
Note: If EditFlags value is missing, create a new value of type REG_BINARY
HKEY_CLASSES_ROOT\AcroExch.Document.7