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wp.org search vs our merit ranking: “pdf annotation”

wp.org orders by popularity, so a plugin a host bundled onto millions of sites, or a big-brand one that's slow and mediocre, can sit at the top. Our ranking is built to answer a different question: which of these is actually worth installing. How this works →

For “pdf annotation”, we agree with wp.org on the top plugin, and our order differs from theirs on 12 of the top 20. 2 plugins are pushed down for signals wp.org ignores: errors, a host-installed base, or removal risk.

wp.org search ranks on

Install count (uncapped), the raw star average, freshness, and support. Popularity dominates, so the biggest install base usually wins regardless of how it got there.

We add

A cap on the install boost, volume-weighted ratings, and signals wp.org can't see: whether it throws errors on current PHP, whether the install base is organic or host-pushed, and its risk of being pulled.

Ranked above its merit

PDF Smart Viewer for Elementor shows at wp.org #8 but places #20 on merit, a gap of 12 places. Its 1K+ installs carry it up the search order; its 3.0★ average from 2 reviews, plus freshness and upkeep, place it lower on our volume-weighted scale.

Buried gem

Unlimited Elements for Elementor places #5 on merit, 4.8★ from 525 reviews, but shows at wp.org #10. A smaller install base keeps it further down the default search order than its quality signals alone would.

merit plugin wp.org
1 DearFlip – PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer 200K+ · 4.9★ (194) wp.org #1 2 PDF Poster – Let visitors read PDF’s without leaving the page 20K+ · 4.5★ (149) wp.org #2 3 EmbedPress 100K+ · 4.8★ (307) wp.org #6 3 too low 4 Flexible PDF Invoices for WooCommerce & WordPress 6K+ · 4.4★ (37) wp.org #4 5 Unlimited Elements for Elementor 300K+ · 4.8★ (525) wp.org #10 ↑1 5 too low 6 E2Pdf – Export Pdf Tool for WordPress 10K+ · 4.7★ (59) wp.org #5 1 too high 7 Document Embedder – let visitors read files without downloading 9K+ · 4.9★ (120) wp.org #9 2 too low 8 Ebook Store 700+ · 4.4★ (60) wp.org #12 4 too low 9 European VAT Compliance Assistant for WooCommerce 3K+ · 4.8★ (26) wp.org #16 7 too low 10 3D Viewer – Turn Product Pages into Interactive 3D Experiences 9K+ · 4.7★ (24) wp.org #15 5 too low 11 Simple Commenter – Website Feedback tool 200+ · 5.0★ (13) wp.org #18 7 too low 12 Simple Ebook Viewer 400+ · 5.0★ (6) wp.org #11 ↓1 1 too high 13 ExactMetrics – Google Analytics Dashboard for WordPress (Website Stats Plugin) 200K+ · 2.5★ (1546) wp.org #23 10 too low 14 PDF Password Protect 200+ · 5.0★ (1) wp.org #3 11 too high 15 iPages – FlipBook Image & PDF Viewer 2K+ · 3.7★ (7) wp.org #13 2 too high 16 Hypothesis 200+ · 4.9★ (7) wp.org #22 ↓3 6 too low 17 Watermark PDF for WordPress and WooCommerce 100+ · 5.0★ (1) wp.org #7 10 too high 18 Annotix – Visual Website Feedback & Annotation 70+ · 0.0★ (0) wp.org #14 4 too high 19 Sacred PDF Viewer 10+ · 0.0★ (0) wp.org #19 20 PDF Smart Viewer for Elementor 1K+ · 3.0★ (2) wp.org #8 12 too high 21 PressPrimer Assignment – Homework Submission, Document Viewer & LMS Grading Workflows 60+ · 5.0★ (1) wp.org #17 4 too high 22 Strands PDF Embed 10+ · 0.0★ (0) wp.org #24 2 too low 23 Chartsy 100+ · 5.0★ (1) wp.org #20 3 too high 24 a11yfy – PDF Accessibility Checker & Fixer — · 5.0★ (1) wp.org #21 ↑1 3 too high

Merit ranking caps the install boost at 1M (wp.org leaves it uncapped), replaces the raw star average with a volume-weighted Bayesian score and a Wilson lower bound, and keeps wp.org's own freshness and compatibility decays. Method from the plugin-directory source; see Meta Trac #8298. Positions are tracked daily from the first visit to a keyword, so the small arrows show movement since tracking began.