PDF Viewer

The PDF viewer is a component that can load and show PDF files inside Zettlr. This feature allows you to, e.g., reference papers or exported paper projects as you write.

Enabling the PDF Viewer

Zettlr uses the PDF viewer to display PDF files, but only if you have set Zettlr as your application to open PDF files with.

To enable Zettlr to open PDF files for you, go inside the Preferences window → “Advanced” → “File Treatment.” In this section you can adjust various options pertaining to where and how to open various file types. Make sure that Open with for PDF documents is set to Zettlr and not to System default.

Using the PDF Viewer

If you have ever used Google Chrome (or a derivative browser), you will immediately recognize the PDF viewer. Since Zettlr is built upon the Chromium-browser, it contains the same PDF viewer. Everything you know from Chrome’s PDF viewer applies in Zettlr.

Like the image viewer, the PDF viewer is just a viewer. If you wish to annotate your PDF files, please use a dedicated PDF application for that.