How to change browser settings to open PDFs in Acrobat

Some browsers use their own internal viewer for PDF documents.  This may cause some documents to not display.  You can save the PDF by following instructions for how to save PDF from browser, however, you will have to do this every time you want to view a PDF in Acrobat.  In order to have a browser open or save a PDF automatically in Acrobat, follow the instructions below for your favorite browser and save the settings.   Refer to's article to display PDF in browser using Acrobat or Acrobat Reader.


  1. Open Chrome browser and type (or copy and paste) this url: chrome://settings/content/pdfDocuments
  2. Slide button option to right to enable Download of PDF files instead of automatically opening them in Chrome.

Chrome Settings


  1. Open Firefox browser and type (or copy and paste) this url: about:preferences#general
    firefox preferences
  2. In General section scroll down until you Files and Applications.  In Downloads you can "Save files to" Downloads (default) or select Browse to save files and applications to another location.  Another options is to select "Always ask you where to save files".
    firefox applications

Internet Explorer 8 and later

  1. Open Internet Explorer browser and select Tools > Manage Add-ons or select icon then Manage Add-ons as shown below.
    Internet Explorer Tools
  2. Manage Add-ons screen will display and made sure you have All add-ons selected under Show, then under Toolbars and Extensions select Adobe PDF Reader.  Once selected click Enable button to enable Adobe PDF Reader.
    Reader disabled
  3. You will see Adobe PDF reader as Enabled and button at Disabled.  If you want to change setting back to displaying PDF on browser (not recommended), toggle the status from Enabled to Disabled by clicking the Enable/Disable button.
    Reader enabled


  1. Open Safari browser then choose in menu Safari > Preferences
    Safari Preferences
  2. In Preference window choose Security then click the Website Settings button for Internet plug-ins.
    Security settings
  3. Select Adobe Reader in the list of plug-ins  Under the option When visiting other Websites, in the drop-down list, choose Allow Always and then click Done.
    Adobe Reader always

See also, How to save PDF from browser.