PDF.js Viewer vs flowpaper (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
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 10K+). Both are free WordPress plugins. PDF.js Viewer has accumulated 407K+ total downloads while flowpaper has 387K+.
Detailed Comparison
| Metric | PDF.js Viewer | flowpaper | |
|---|---|---|---|
| Rating | 4.4/5 | ◄ | 3.3/5 |
| Total Reviews | 53 | ◄ | 36 |
| Active Installs | 20K+ | ◄ | 10K+ |
| Total Downloads | 407K+ | ◄ | 387K+ |
| Support Resolution | 50% | N/A | |
| Last Updated | 1 week ago | ◄ | 1 year ago |
| First Released | 2013 | 2016 | |
| Age | 13 years | 10 years | |
| WP Requires | 5.0+ | 3.0+ | |
| PHP Requires | 7.4+ | false+ | |
| Business Model | Free | Free | |
| Latest Version | 3.0.4 | 2.0.6 |
Rating Breakdown
PDF.js Viewer
flowpaper
Download Trends
Over the past 30 days, PDF.js Viewer averaged approximately 693 daily downloads while flowpaper averaged 29.
Recent Reviews
PDF.js Viewer Reviews
Never failed
I’ve been using for years and never failed. Simple to use and does the job.
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.
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
flowpaper Reviews
SO BAD PLUGIN
This Plugin can not use and support never response via email Scam
disable sharing and displaying a PDF
How can I disable sharing and displaying a PDF file with FlowPaper?
Limited to 15 MB
The plugin is limited to 15 MB, beyond this size it eliminates extra pages. Unfortunately, the limit is not very clear. I installed the plugin and used for many files, but now I have to change it. A b
More Viewer Worth Comparing
Top alternatives in the same category as PDF.js Viewer and flowpaper
Embed a PDF from the Media Library or elsewhere via oEmbed or as a block into an iframe tag.
A simple and 100% free Gutenberg Block to display PDF Viewers / Readers on your website.
Darkens the current page and displays an image (like Lightbox, Thickbox, etc.), but is a lot smaller (10KB) and faster.
A simple PDF viewer widget for Elementor that displays PDFs directly on your website.
Frequently Asked Questions
Is PDF.js Viewer or flowpaper more popular?
Which has better ratings — PDF.js Viewer or flowpaper?
Are PDF.js Viewer and flowpaper free?
Which plugin has better support — PDF.js Viewer or flowpaper?
Which plugin is updated more frequently?
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.