How to Display PDFs in Web Browsers Using Acrobat or Reader
Question details
The user wants to view PDF documents directly within their web browser using Adobe Acrobat or Reader instead of the browser's default viewer.

- Product
- Adobe Acrobat / Web Browsers
- Device & OS
- not provided
- Scenario
- Attempting to open, view, or read a PDF file hosted on a website directly within the browser window.
- Observed behavior
- Modern web browsers default to their built-in PDF viewers and fail to load the Adobe Acrobat or Reader plug-in natively within the browser window.
Before modifying your browser settings, verify which web browser you are currently using, as most modern browsers (like Chrome, Edge, Safari, and Firefox) no longer support traditional PDF plug-ins.
Enable Adobe PDF Reader Add-on in Internet Explorer
If you are using Internet Explorer, you can manually enable the Adobe PDF Reader extension to view PDFs natively.
Internet Explorer is one of the few legacy browsers that still supports ActiveX plug-ins, allowing the Adobe PDF Reader to embed directly into the browser tab.
Open Internet Explorer and click on the 'Tools' gear icon located in the upper right corner of the window.
Select 'Manage Add-ons' from the dropdown menu to open the browser extensions window.
Under 'Add-on Types' on the left panel, select 'Toolbars and Extensions'. Then, under the 'Show' dropdown menu, choose 'All Add-ons'.
Locate 'Adobe PDF Reader' in the list of extensions, click on it to select it, and then click the 'Enable' button at the bottom right.

Download and Open PDFs Externally in Modern Browsers
Since modern browsers no longer support the Adobe PDF plug-in, the most reliable approach is to download the PDF and open it directly in your desktop application.
Easily View and Edit PDFs with WPS Office
Instead of struggling with browser plug-in compatibility, you can download your PDFs and manage them effortlessly using the built-in WPS PDF tool. It offers a fast, lightweight, and feature-rich reading experience.
- 1. Install WPS Office: Download and install WPS Office for free from the official website.
- 2. Download Your Document: Save the online PDF file to your computer directly from your web browser.
- 3. Open the PDF Tool: Launch WPS Office, click on 'PDF' in the main navigation menu, and select 'Open'.
- 4. View and Edit: Locate your downloaded PDF file and click 'Open' to start viewing, annotating, or editing it instantly.

Frequently Asked Questions
Why did my web browser stop opening PDFs with Adobe Acrobat?
Most modern web browsers, including Google Chrome, Mozilla Firefox, Apple Safari, and Microsoft Edge, have removed support for legacy NPAPI and ActiveX plug-ins for security and performance reasons. They now default to using their own embedded PDF viewers.
How can I force Chrome to use Adobe Acrobat for PDFs?
You cannot force Chrome to embed the Adobe Acrobat viewer within the browser window anymore. However, you can change Chrome's settings (Settings > Privacy and security > Site Settings > Additional content settings > PDF documents) to 'Download PDFs' automatically instead of opening them in the browser, allowing you to open the downloaded files directly in your Acrobat desktop app.
Can I set a desktop app as my default PDF viewer in Windows?
Yes. Right-click any saved PDF file on your computer, select 'Open with' > 'Choose another app', select your preferred PDF software from the list, and check the box that says 'Always use this app to open .pdf files'.




