WordPress plugin comparison

PDF.js Viewer vs Watermark PDF for WordPress and WooCommerce

PDF.js Viewer

by Ben Lawson

20K+ installs4.4

Watermark PDF for WordPress and WooCommerce

by GrandPlugins

100+ installs5.0

At a glance

PDF.js Viewer has more active installs: 20K+, against 100+ for Watermark PDF for WordPress and WooCommerce.
On a typical day, PDF.js Viewer is downloaded about 368 times, Watermark PDF for WordPress and WooCommerce about 6.
Watermark PDF for WordPress and WooCommerce is rated higher: 5.0 out of 5 from 1 review, against 4.4 from 53 reviews.
PDF.js Viewer was updated more recently: Oct 26, 2026, against Jan 28, 2026 for Watermark PDF for WordPress and WooCommerce.
PDF.js Viewer is tested with a newer WordPress: 7.0.8, against 6.9.11 for Watermark PDF for WordPress and WooCommerce.
PDF.js Viewer has been around longer: since 2013, against 2023 for Watermark PDF for WordPress and WooCommerce.

PDF.js Viewer leads on 6 of 7 comparable lines.

Metric	PDF.js Viewer	Watermark PDF for WordPress and WooCommerce
Popular rank	#1,181	#15,986
Active installs	20K+	100+
Downloads, last 30 days	14.7K	110
Rating	4.4(53)	5.0(1)
Support threads resolved	0%	–
Tested up to	7.0.8	6.9.11
Search multiplier	×0.89	×0.28
Last release	14 days ago	9 months ago
Requires PHP	7.4	7.1.3

From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.

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