Gravity PDF vs PDF.js Viewer (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Quick Verdict
As of April 2026, Gravity PDF has a higher user rating (4.9/5 from 317 reviews) and leads in active installations (20K+ vs 20K+). Both are free WordPress plugins. Gravity PDF has accumulated 2.1M+ total downloads while PDF.js Viewer has 407K+. PDF.js Viewer has a higher support resolution rate (50% vs 0%).
Detailed Comparison
| Metric | Gravity PDF | PDF.js Viewer | |
|---|---|---|---|
| Rating | 4.9/5 | ◄ | 4.4/5 |
| Total Reviews | 317 | ◄ | 53 |
| Active Installs | 20K+ | 20K+ | |
| Total Downloads | 2.1M+ | ◄ | 407K+ |
| Support Resolution | 0% | ► | 50% |
| Last Updated | 8 months ago | ► | 1 week ago |
| First Released | 2012 | 2013 | |
| Age | 14 years | 13 years | |
| WP Requires | 5.3+ | 5.0+ | |
| PHP Requires | 7.3+ | 7.4+ | |
| Business Model | Free | Free | |
| Latest Version | 6.12.6.3 | 3.0.4 |
Rating Breakdown
Gravity PDF
PDF.js Viewer
Download Trends
Over the past 30 days, Gravity PDF averaged approximately 164 daily downloads while PDF.js Viewer averaged 693.
Recent Reviews
Gravity PDF Reviews
Great plugin and support
We use Gravity Forms PDF Extended on multiple projects and it works flawlessly. PDF generation is stable, flexible, and good to customize, even for more complex forms. Excellent functionality and I hi
Amazing plugin and support!!
The plugin works great but even when i stumbled across an issue while implementing a custom solution the support team replied in a quick and prompt manner that helped me fix it!! Thank you guys!
Perfect support
Fast and perfect support it worked like a charm 🙂
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
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Frequently Asked Questions
Is Gravity PDF or PDF.js Viewer more popular?
Which has better ratings — Gravity PDF or PDF.js Viewer?
Are Gravity PDF and PDF.js Viewer free?
Which plugin has better support — Gravity PDF or PDF.js Viewer?
Which plugin is updated more frequently?
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.