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

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 “save as pdf”, we and wp.org disagree on the top plugin, and our order differs from theirs on 9 of the top 20.

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 the install base is organic or host-pushed, and its risk of being pulled.

Ranked above its merit

Pdf Embed shows at wp.org #5 but places #11 on merit, a gap of 6 places. Its 10K+ installs carry it up the search order; its 5.0★ average from 6 reviews, plus freshness and upkeep, place it lower on our volume-weighted scale.

Buried gem

Forminator Forms – Contact Form, Payment Form & Custom Form Builder places #8 on merit, 4.8★ from 2145 reviews, but shows at wp.org #17. A smaller install base keeps it further down the default search order than its quality signals alone would.

How this rank is calculated

Each plugin's merit score multiplies these inputs together: how recently it was updated, how current its "tested up to" WordPress version is, its install base (log scale, capped at 10 million), its support thread resolution rate, and a rating score. The rating score weights the star average by review volume against a sitewide prior, then scales it by the lower bound of the share of 4 and 5 star reviews. A plugin with 3.7 stars from tens of thousands of reviews can still outscore a 4.9 with a few dozen, because the small sample carries less certainty.

A health factor between 0.4 and 1.15 then adjusts that score for what wp.org's search can't see: PHP fatals or failed activations on a test install, PHP and WordPress compatibility, memory and page-speed footprint, suspicious review patterns, closure risk, and a large install base with very few reviews. Clean, adopted plugins earn a small lift.

A keyword ranking starts from wp.org's search order for the term, weighting each position by 1 divided by its place, then applies the merit correction and health factor above. Relevance to the keyword stays in the result, so the order can differ from the all-categories list on /best, which scores plugins with no search term.

Hover a row to see the main reason for its position.

merit plugin wp.org
1 PDF Embedder – PDF Viewer & Embed PDF Files for WordPress 300K+ · 4.7★ (530) wp.org #2 ↓1 1 too low 2 Save as PDF Plugin by PDFCrowd 1K+ · 4.1★ (27) wp.org #1 ↑2 1 too high 3 DearFlip – PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer 200K+ · 4.9★ (194) wp.org #3 ↓1 4 PDF Poster – Let visitors read PDF’s without leaving the page 20K+ · 4.5★ (149) wp.org #4 5 PDF & Print by BestWebSoft – WordPress Posts and Pages PDF Generator Plugin 9K+ · 3.9★ (102) wp.org #6 1 too low 6 B BSK PDF Manager 7K+ · 4.5★ (46) wp.org #7 ↑1 1 too low 7 PDF Builder for WooCommerce. Create invoices,packing slips and more 2K+ · 4.7★ (145) wp.org #11 ↓1 4 too low 8 Forminator Forms – Contact Form, Payment Form & Custom Form Builder 600K+ · 4.8★ (2145) wp.org #17 ↑1 9 too low 9 Print, PDF & Email by PrintFriendly 20K+ · 3.8★ (237) wp.org #10 ↑2 1 too low 10 PDF Generator for WordPress 1K+ · 4.6★ (39) wp.org #9 ↑5 1 too high 11 Pdf Embed 10K+ · 5.0★ (6) wp.org #5 6 too high 12 E2Pdf – Export Pdf Tool for WordPress 10K+ · 4.7★ (59) wp.org #15 ↑4 3 too low 13 Generate PDF using Contact Form 7 4K+ · 4.7★ (40) wp.org #13 ↑4 14 PDF Forms Filler for CF7 3K+ · 4.8★ (13) wp.org #8 ↑3 6 too high 15 PDF Invoices & Packing Slips for WooCommerce – Challan Invoice Plugin 7K+ · 4.6★ (47) wp.org #14 ↑1 1 too high 16 Flexible PDF Invoices for WooCommerce & WordPress 6K+ · 4.4★ (37) wp.org #24 8 too low 17 PDF for Elementor Forms + Drag And Drop Template Builder 1K+ · 3.9★ (11) wp.org #12 ↑4 5 too high 18 CatFolders Document Gallery & PDF Library 3K+ · 4.5★ (15) wp.org #22 4 too low 19 Flipbook PDF Viewer & Embedder 300+ · 5.0★ (6) wp.org #18 ↓5 1 too high 20 Flipa PDF Flipbook – PDF Viewer and Page Flip Book 800+ · 5.0★ (4) wp.org #16 ↑4 4 too high 21 PDF Invoice for WooCommerce + Drag and Drop Template Builder 500+ · 5.0★ (6) wp.org #23 2 too low 22 PDF for WPForms + Drag and Drop Template Builder 1K+ · 4.5★ (6) wp.org #19 ↑3 3 too high 23 PDF for Gravity Forms + Drag And Drop Template Builder 400+ · 5.0★ (2) wp.org #21 ↑3 2 too high 24 PDF for Forminator Forms + Drag and Drop Template Builder 200+ · 5.0★ (1) wp.org #20 4 too high

Merit ranking caps the install boost at 10M (wp.org leaves it uncapped), replaces the raw star average with a volume-weighted 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.