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by Ben Lawson 4.4 (53 reviews)

PDF.js Viewer

Embed a beautiful PDF viewer into pages.

PDF.js Viewer ranks #1,214 among WordPress.org plugins with 20,000+ active installations, is #185 of 8,299 in the Customization category, a 4.4/5 rating from 53 reviews, and was last updated Apr 21, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Compatible with WP 7

v3.1.1 Current Version v3.1.1

Updated 3 months ago Last Update on 21 Apr, 2026

Refreshed 8 hours ago Last Refreshed on

#185 of 8,299 in Customization Top 5% by installs Downloads -20.1% this week

View on WordPress.org

Rank

#1,214

-2 this week

Active Installs

20K+

— No change

KW Avg Position

22.8

0.2 better

Downloads

404.7K

+32 today

Support Resolved

0%

— No change

Rating

88%

Review 4.4 out of 5

4.4 (53 reviews)

Next Milestone 30K

Total Progress 68%

20K+ 30K+

112

Ranks to Climb

-

Growth Needed

8,000,000

Active Installs

Pro

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See the precise estimated active installs for this plugin, calculated from real-time ranking data.

Exact install estimates within tiers
Track install growth over time
Milestone progress predictions

Need 3,200 more installs to reach 30K+

Rank Changes

Current #1,214

Change

Best #

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Active Installs Growth

Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

Downloads Growth

Downloads

Growth

Peak

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Unlock 30-day, 90-day, and yearly download history charts with a Pro subscription.

Reviews & Ratings

4.4

53 reviews

Overall 88%

5

37 (70%)

4

7 (13%)

3

4 (8%)

2

3 (6%)

1

2 (4%)

Tracked Keywords

Showing 5 of 5

Keyword	Position	Change	Type	Updated
mozilla	1	—	Tag	9 hours ago
pdfjs	1	—	Tag	9 hours ago
viewer	4	—	Tag	9 hours ago
embed	50	—	Tag	9 hours ago
pdf	58	—	Tag	9 hours ago

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Track keyword rankings, search positions, and discover new ranking opportunities with a Pro subscription.

Full keyword position tracking
Historical ranking data
Competitor keyword analysis

Support Threads Overview

Resolved

Unresolved

1

Total Threads

0

Resolved

1

Unresolved

0%

Resolution Rate

Security History

Source: WPVulnerability

3 known vulnerabilities on record · 0 in the last 24 months · checked 1 day ago

May 14, 2024

PDF.js Viewer [pdfjs-viewer-shortcode] < 2.2

CVE-2024-4367 · Fixed in v2.2
Jan 10, 2023

PDF.js Viewer [pdfjs-viewer-shortcode] < 2.1.8

CVE-2022-4670 · Fixed in v2.1.8
Aug 11, 2021

PDF.js Viewer [pdfjs-viewer-shortcode] < 2.0.2

CVE-2021-24759 · Fixed in v2.0.2

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Plugin Details

Version: 3.1.1
Last Updated: Apr 21, 2026
Requires WP: 5.0+
Tested Up To: 7
PHP Version: 7.4 or higher
Author: Ben Lawson

Support & Rating

Rating: ★ ★ ★ ★ ☆ 4.4
Reviews: 53
Support Threads: 1
Resolved: 0%

Keywords

embed mozilla pdf pdfjs viewer

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Frequently Asked Questions

Common questions about PDF.js Viewer

PDF.js Viewer has 20,000+ active installations on the WordPress.org plugin directory.

PDF.js Viewer holds a 4.4 out of 5 star rating based on 53 user reviews on WordPress.org.

PDF.js Viewer is developed by Ben Lawson and published on the official WordPress.org plugin repository.

PDF.js Viewer requires WordPress 5.0 or higher, is tested up to WordPress 7 and needs PHP 7.4 or newer.

PDF.js Viewer has been downloaded 404,697+ times from WordPress.org.

The latest version of PDF.js Viewer is 3.1.1. It was last updated on April 21, 2026.

Yes. PDF.js Viewer is a free WordPress plugin available to download and install from the WordPress.org plugin directory.

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