There are several PDF watermark/password plugins for WordPress + WooCommerce, but which is best for you?
This table scrolls ↔ horizontally to compare 5 plugins. Select 2 or more to compare. Hover on a box to expand overflowing text. There’s also a machine-readable/accessible comparison table version below.
Last updated Summer 2026. If there’s a correction, please contact us.
Machine-readable Plugin Comparison Table
| Plugin name | Price | Free version available | Return period | # of plugins supported by this developer | PDF requirements | Parser used | Preserves internal links | Preserves accessibility | Use your own font | UTF-8 support | RTL | Watermarking positions | Choose which pages to watermark | HTML in watermarks | Opacity of watermarks | Watermark testing/on-the-fly | Watermark with image | image and text in same watermark | 4 levels of RSA/AES encryption | User password | Owner password setting | Protections | built in shortcodes | per-product watermarking | Barcoding | Preserves PDF metadata | Error logging | Cron file cleanup | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PDF Ink | $80 | yes | 30 day | 1 | Any version PDF. Non web-optimized, non-linearized PDFs work best | TCPDI/TCPDF, FPDI/FPDF, TCPDI/FPDF, FPDI PDF-Parser, SetaPDF-Stamper | yes (when 3rd party library SetaPDF-Stamper is added) | yet (when 3rd party library SetaPDF-Stamper is added) | yes | yes | yes | 4+ | all, first, last, designate start-end, odd, even | yes | yes, to 100th using HTML | yes | yes, using HTML | yes | yes | custom or user email | yes | copy, print, modify, annotate, assembly (filterable) | first name, last name, address 1, address 2, city, state, post code, country, email, phone number, business name, order date (with configurable future dates), order number, product name | per-product, even per-variation | yes | title, author, creation date, keywords, subject | yes | yes | |||
| WooCommerce PDF Watermark | $129 | 30 day | 18 | PDF < v2.0 | TCPDI (our fork)/TCPDF | Only using insecure JS means – file locations exposed in DOM | no | no | no | no | 1 | all, first, last, alternating | no | yes, to 10th | yes | yes, inserts one for you | no | no | user email or order number | no | copy, print, modify, annotate | first name, last name, email, order number, order date, site name, site URL | per-product | no | no | no | no | ||||
| Ignite WC PDF Watermark Stamper |
$79 | 0 / Restrictive | 57 | no PDFs newer than version 1.4 | FPDI/FPDF | no | no | no | no | no | 2 | all, first, last, odd, even | no | yes, to 100th | yes | yes, inserts one for you | ? | no | ? | no | copy, print, modify, annotate | first name, last name, address, city, state, postcode, email, order number, date, order date | per-product | no | no | yes | no | ||||
| Grand Plugins WP PDF Watermark |
$39 | yes | 14 | 47 | PDF < v2.0 | FPDI/FPDF BUT requires Ghostscript and proc_open (!) on your server | no | no | no | yes | yes | 9 | all | no | no | yes | no | no | no | no | no | no? | many! | no | no | no | no | no | |||
| Tips & Tricks WP PDF Stamper |
$49.95 (plugin “retired”) | ? | 18 | no PDFs newer than version 1.4 | 7.4 | FPDI/FPDF | ? | designate start-end | custom or user email | copy, print,modify | first name, last name, address, email, phone, order number, date, business name, order id, stamp date | none | ? |
Footnotes 👣
Only one is a good thing! PDF Ink is the ONLY plugin product we support, meaning our time and concentration is not stretched thin between many different plugins and customer requirements. Beyond that, we’ve been supporting PDF Ink since 2014.
Why pay $50 more for less? And as you can see from the chart above, WooCommerce PDF Watermark is a simpler plugin offering fewer settings/features. Since 2024, WooCommerce PDF Watermark plugin has been using our namespaced fork of TCPDI. As of 2026 they are now also using our namespaced fork of TCPDF. In other words, they use our code behind their curtain. If you’re ready to switch to PDF Ink from WooCommerce PDF Watermark, we have a migration feature to import your settings and make the transition easier.
When it comes to choosing plugins, what matters more than brand name and price is quality and support.
Hopefully after reviewing this table, you can agree PDF Ink is the best PDF watermarking plugin for WordPress/WooCommerce.