Best Open in PDF Viewer Alternatives in 2026

About Open in PDF Viewer

Open in PDF Viewer is a simple and lite addon that allows you to easily open desired PDF links in a chosen PDF viewer. Note 1: after installing the addon, you need to connect it with native applications (i.e. adobe acrobat reader) on your machine. To make this connection, a separate patch is provided in GitHub. Please download and install this patch from: https://github.com/alexmarcoo/open-in-native-client/releases Follow the instructions in the above GitHub page to download and install the related patch to your system. After installing, the "Open in PDF Viewer" addon in your browser can communicate with PDF viewer on your machine (Window, Linux, or Mac). The default option for the PDF viewer is adobe acrobat reader. In windows 10, the default location for Adobe Acrobat is "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe". If you have a different OS, or if you installed Adobe Acrobat in a different folder, please adjust the field accordingly. You can change this from the options page. There is also an input field in which you can add arguments for the viewer. For example, to open PDF as full-screen or without toolbar.