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WordPress pluginwhat they say

PDF.js Viewer

Embed a beautiful PDF viewer into pages.

★★★★☆4.4 (53) · 20k+ active installs
Free
Website ↗ WordPress.org ↗
what mrrlens sees
MRR · No price listedNo price in the listing
Opportunity—
Buyer threads · 30 d0
“Code not removed after deleting plug-in”
#1 complaint · Bugs/Reliability · 2 of 3 complaints read · analysed Oct 29, 2026 · source

01Revenue

No price in the listing

2 daily snapshots · growth 30 d: —

Store data from the WordPress.org listing, refreshed daily. Updated 14 h ago. Listed since 2013.

02Why users leave PDF.js Viewer

5★70%
4★13%
3★8%
2★6%
1★4%
Bugs/Reliability2 reviews · 2 of 3

Deleting the plug-in leaves code behind; users expect clean removal with no residual files or references.

“Code not removed after deleting plug-in” source ↗
1 more complaint, with verbatim quotesIncluded in the day pass and Pro.
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Sample: 3 recent complaints (1–3★ reviews) · clustered Oct 29, 2026 · complaints from May 2014–Jul 2015, none in the last 24 months — history, not today · each review labelled by a model, quotes verbatim

03How to build a better PDF.js Viewer

Build difficultyMediumPDF rendering and browser compatibility are nontrivial; no payments, regulation, hardware, or network effects.
Three build ideas that answer these complaintsIncluded in the day pass and Pro.
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04Who wants a better PDF.js Viewer

0 buyer threads in the last 30 days name PDF.js Viewer.

05Questions about PDF.js Viewer

How much revenue does PDF.js Viewer make?

PDF.js Viewer's listing publishes no price and no paid plan, so MRRLens shows no revenue estimate. It may still charge on its own website; a founder can verify the real figure.

What do users complain about most in PDF.js Viewer?

Across 3 recent complaints, the most common is bugs/reliability (2 of 3). Deleting the plug-in leaves code behind; users expect clean removal with no residual files or references.

What are the best PDF.js Viewer alternatives?

The closest alternatives MRRLens found are PDF viewer for Elementor & Gutenberg, Wonder PDF Embed and PDF Embedder. The full list, with why users leave, is on the PDF.js Viewer alternatives page.

How many people use PDF.js Viewer?

PDF.js Viewer lists 20k+ active installs on WordPress.org, rated 4.4 (53).

See the full x-ray of PDF.js Viewer

Full 1-star breakdown with verbatim quotes, the build blueprint and every live thread — on every product.