Firefox PDF Viewer (PDF.js) vs Pdf Viewer Plus

A side-by-side look at Firefox PDF Viewer (PDF.js) and Pdf Viewer Plus. For an in-depth review of either product, follow the links below.

Firefox PDF Viewer (PDF.js)

Web Browsers

Firefox PDF Viewer (PDF.js) is an open source PDF viewer that is built into Firefox. It allows you to view PDFs directly in the browser without needing an external plugin.

open-sourcepdfviewerfirefoxbrowser-plugin

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Pdf Viewer Plus

Office & Productivity

Pdf Viewer Plus is a free PDF viewer, editor and annotation tool. It allows you to view, edit, sign, and annotate PDF documents on Windows devices. Key features include tabbed PDF reading, editing text and images, adding signatures and comments, highlighting and underlining text.

pdfviewereditorannotationfree

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