Firefox PDF Viewer (PDF.js) vs PDF Annotator

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

Full review → Alternatives

PDF Annotator

Office & Productivity

PDF Annotator is a PDF viewer and editor that allows users to add annotations like text comments, highlights, shapes, and drawings to PDF files. It has basic PDF editing features to rearrange or delete pages.

annotationeditingcommentshighlightsshapesdrawings

Full review → Alternatives

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