Mozilla's latest version of Firefox conveniently includes a built-in PDF viewer. If you prefer your own PDF viewer, here's how to change it.

Learn how to enable and use PDF editing tools in Firefox PDF reader. You can use Free Text Annotation tool and Ink Annotation tool in Firefox.

And, you can change your default PDF viewer for your browser by installing the Acrobat Reader browser extension. Install Adobe Acrobat Reader DC Head to the official Adobe website.

To display PDFs using the built-in WebKit PDF viewer for Safari, open Adobe Reader (located in /Applications) and select "Preferences" from the "Adobe Reader" menu.

Learn how to change the default PDF reader & viewer, which is Microsoft Edge browser, in Windows 11/10, to one of your choice.

How to Make Adobe Acrobat the Default PDF Viewer. The PDF, or portable document format file, was created to transform output from any document creation software into a file almost any recipient ...