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

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 preview”, we agree with wp.org on the top plugin, and our order differs from theirs on 6 of the top 20. 5 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 Forms Filler for CF7 shows at wp.org #8 but places #14 on merit, a gap of 6 places. Its 3K+ installs carry it up the search order; its 4.8★ average from 13 reviews, plus freshness and upkeep, place it lower on our volume-weighted scale.

Buried gem

3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery places #7 on merit, 4.8★ from 182 reviews, but shows at wp.org #13. A smaller install base keeps it further down the default search order than its quality signals alone would.

merit plugin signals wp.org

PDF Invoices & Packing Slips for WooCommerce 300K+ · 5.0★ (1865) throws errorsnot PHP-current wp.org #1 2

PDF Embedder – PDF Viewer & Embed PDF Files for WordPress 300K+ · 4.7★ (529) wp.org #2 3

DearFlip – PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer 200K+ · 4.9★ (194) wp.org #3 4

PDF Ink Lite – Free PDF Watermark & Password Protection 2K+ · 4.6★ (51) wp.org #4 5

PDF Poster – Let visitors read PDF’s without leaving the page 20K+ · 4.5★ (149) not PHP-current wp.org #7 ↓3 2 too low 6

PDF & Print by BestWebSoft – WordPress Posts and Pages PDF Generator Plugin 9K+ · 3.9★ (102) wp.org #6 ↓1 7

3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery 70K+ · 4.8★ (182) wp.org #13 ↑1 6 too low 8

File Manager 1M+ · 4.6★ (1492) wp.org #14 ↑1 6 too low 9

Real3D Flipbook – 3D Flipbook, PDF Flipbook, PDF Viewer, PDF Embedder 10K+ · 4.5★ (11) thin reviews wp.org #5 ↑2 4 too high 10

WebToffee WooCommerce PDF Invoices, Packing Slips, Delivery Notes & Shipping Labels 50K+ · 4.9★ (285) throws errorsnot PHP-current wp.org #11 ↑1 1 too low 11

Generate PDF using Contact Form 7 4K+ · 4.7★ (40) wp.org #9 ↓1 2 too high 12

Print, PDF & Email by PrintFriendly 20K+ · 3.8★ (237) throws errorsnot PHP-current wp.org #10 ↑1 2 too high 13

PDF Invoices & Packing Slips for WooCommerce – Challan 7K+ · 4.6★ (47) throws errorsnot PHP-current wp.org #12 1 too high 14

PDF Forms Filler for CF7 3K+ · 4.8★ (13) throws errorsnot PHP-current thin reviews wp.org #8 ↑1 6 too high 15

Flipbook PDF Viewer & Embedder 300+ · 5.0★ (6) thin reviews wp.org #16 ↓6 1 too low 16

Flipa PDF Flipbook – PDF Viewer and Page Flip Book 800+ · 5.0★ (4) thin reviews wp.org #15 ↑1 1 too high 17

PDF for Elementor Forms + Drag And Drop Template Builder 1K+ · 3.9★ (11) throws errorsnot PHP-current thin reviews wp.org #18 1 too low 18

PDF Invoice for WooCommerce + Drag and Drop Template Builder 500+ · 5.0★ (6) throws errorsnot PHP-current thin reviews wp.org #22 ↓1 4 too low 19

PDF for WPForms + Drag and Drop Template Builder 1K+ · 4.5★ (6) throws errorsnot PHP-current thin reviews wp.org #17 2 too high 20

Free PDF to Flipbook 500+ · 5.0★ (2) thin reviews wp.org #21 ↑2 1 too low 21

PDF Gallery Viewer 200+ · 5.0★ (2) thin reviews wp.org #23 ↓1 2 too low 22

PDF for Gravity Forms + Drag And Drop Template Builder 400+ · 5.0★ (2) throws errorsnot PHP-current thin reviews wp.org #19 ↑1 3 too high 23

Posts to PDF – Backend Batch Export 200+ · 5.0★ (1) thin reviews wp.org #20 3 too high 24

PDF-Preview inside File-Block 10+ · 5.0★ (1) thin reviews wp.org #24

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.