PDF.js Viewer vs Website Update Viewer (2026)

Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.

PDF.js Viewer

PDF.js Viewer

4.4(53)

20K+ active installs

Free

Updated 1 week ago
View PDF.js Viewer
VS
Website Update Viewer

Website Update Viewer

0(0)

70 active installs

Free

Updated 10 months ago
View Website Update Viewer

Quick Verdict

As of April 2026, PDF.js Viewer has a higher user rating (4.4/5 from 53 reviews) and leads in active installations (20K+ vs 70). Both are free WordPress plugins. PDF.js Viewer has accumulated 407K+ total downloads while Website Update Viewer has 590.

Detailed Comparison

Rating
4.4/5PDF.js Viewer
Website Update ViewerN/A
Total Reviews
53PDF.js Viewer
Website Update Viewer0
Active Installs
20K+PDF.js Viewer
Website Update Viewer70
Total Downloads
407K+PDF.js Viewer
Website Update Viewer590
Support Resolution
50%PDF.js Viewer
Website Update ViewerN/A
Last Updated
1 week agoPDF.js Viewer
Website Update Viewer10 months ago
First Released
2013PDF.js Viewer
Website Update Viewer2025
Age
13 yearsPDF.js Viewer
Website Update Viewer1 year
WP Requires
5.0+PDF.js Viewer
Website Update Viewer5.0+
PHP Requires
7.4+PDF.js Viewer
Website Update Viewer7.2+
Business Model
FreePDF.js Viewer
Website Update ViewerFree
Latest Version
3.0.4PDF.js Viewer
Website Update Viewer1.0

Rating Breakdown

PDF.js Viewer

4.4/5(53 reviews)
5
70%
4
13%
3
8%
2
6%
1
4%

Website Update Viewer

0/5(0 reviews)
5
0%
4
0%
3
0%
2
0%
1
0%

Recent Reviews

PDF.js Viewer Reviews

by cengoguven

Never failed

I’ve been using for years and never failed. Simple to use and does the job.

by KeithRowley

Excellent PDF EMbedder

I have been usiong a paid pdf plugin but it’s been months now with a bad fault so i tried this – perfect! Thank you very much.

by Hub5050

Great Support

I was impressed with the level of support provided with the recent issue where the plugin stopped displaying due to Mozilla’s PDFjs, and they started using mjs files. Thank you for an excellent plu

Website Update Viewer Reviews

No reviews yet

Frequently Asked Questions

Is PDF.js Viewer or Website Update Viewer more popular?
PDF.js Viewer has 20K+ active installations while Website Update Viewer has 70. PDF.js Viewer is the more widely-used plugin as of April 2026.
Which has better ratings — PDF.js Viewer or Website Update Viewer?
PDF.js Viewer has a 4.4/5 rating from 53 reviews, while Website Update Viewer has a 0/5 rating from 0 reviews.
Are PDF.js Viewer and Website Update Viewer free?
PDF.js Viewer is free and Website Update Viewer is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — PDF.js Viewer or Website Update Viewer?
Support resolution data is not available for all plugins. Check each plugin's WordPress.org support forum for current response quality.
Which plugin is updated more frequently?
PDF.js Viewer was last updated 1 week ago and Website Update Viewer was last updated 10 months ago.

Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.