/ Plugin Category

/ Content Management

/ Document Management & Downloads

/ PDF.js Viewer

PDF.js Viewer

By Ben Lawson

Content Management / Document Management & Downloads

PDF.js Viewer Review - In-Depth Analysis

Embed a beautiful PDF viewer into pages using a Gutenberg block or shortcode. Supports multiple languages and features a customizable interface.

Performance Overview

WPS Score

6.91/10

User Rating

4.4/5 (based on 53+ reviews)

Active Installations

20,000+

Update Frequency

Average It is calculated using the weighted average of same category plugins.

Security Score

1 / 10 (Very Low Risk) It is calculated using the weighted average of all versions.

What It Does

Incorporate Mozilla's PDF.js viewer into your pages and posts via a Gutenberg block or a simple shortcode. PDF.js is a javascript library for displaying pdf pages within browsers.

This plugin features a Gutenberg Block and Shortcode for easy integration. It includes translation support for Spanish and French, with more languages ready to be added. The elegant theme adapts to dark and light modes if the browser supports dynamic CSS.

Additional features include customizable buttons, a page navigation drawer, search functionality, and protected PDF password entry. It also has a loading bar that displays partially loaded PDFs, which is great for handling large files. The plugin supports mobile devices and provides an easy-to-use editor media button that generates the shortcode automatically.

Comparing to Alternatives

PDF.js Viewer offers a straightforward PDF embedding solution compared to other plugins in the market. Here is how it stacks up against similar tools.

Top alternatives

Strengths

Simple and easy to use shortcode integration.
Reliable PDF rendering using Mozilla's PDF.js library.
Lightweight with minimal impact on site performance.
Open-source and free with no hidden costs.

Weaknesses

Recent updates have caused functionality issues for some users.
Limited customization options compared to premium alternatives.
No official pro version or advanced support.
Occasional compatibility problems with latest WordPress versions.

User Sentiment Analysis

User feedback highlights both the strengths and recent challenges faced by PDF.js Viewer.

Positive highlights

'Great support' - Hub5050 appreciated the responsive help during recent issues.
'Excellent PDF Embedder' - KeithRowley found it a perfect free alternative to paid plugins.
'Never failed' - cengoguven praised its reliability over years of use.

Common complaints

Plugin stopped working after version 2.2 update.
Issues with shortcode rendering PDFs correctly.
Problems reactivating the plugin after deactivation.
Potential CORS-related errors affecting display.

Weaknesses

Update stability concerns impacting user trust.
Limited troubleshooting documentation for new issues.
No paid support channel for urgent fixes.

Who Should Use This?

Best for

Users seeking a free, simple PDF embedding solution with basic features and minimal setup.

Not ideal for

Those needing advanced customization, guaranteed compatibility with latest WordPress versions, or dedicated premium support.

Pricing & Value

Free version includes

The free version includes full PDF embedding functionality using Mozilla's PDF.js, shortcode support, and basic customization options.

Final Verdict

PDF.js Viewer is a solid choice for users wanting a free and straightforward PDF embedding plugin that leverages a trusted open-source library.

However, recent updates have introduced some stability issues, and the lack of a pro version limits advanced features and dedicated support, which may be a concern for users with complex needs.