Firefox PDF Viewer (PDF.js) vs SourcePDF

A side-by-side look at Firefox PDF Viewer (PDF.js) and SourcePDF. 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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SourcePDF

Office & Productivity

SourcePDF is an open-source PDF editor for Windows, Mac and Linux. It allows users to view, edit, annotate, sign, fill forms and convert PDF documents. Key features include editing text and images, adding annotations, digital signatures, JavaScript actions and more.

pdfeditorviewerannotateconvert

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