PDF Ink

PDF Ink is the full version of PDF Ink Lite for WordPress websites that deliver digital files. When a customer clicks a supported download link, the add-on checks the file and applies the configured watermark and protection settings. It works with WooCommerce, Easy Digital Downloads and Download Monitor, and shortcodes can make PDF download links on other pages without an e-commerce plugin.

Use shared settings or rules for each product

Apply one watermark and password configuration across PDF files, or assign different settings to an individual product or product variation. This lets site managers set file treatment according to the download being delivered.

Choose which pages receive a watermark

Set a starting page and an end page, or target every page, odd pages, even pages or specified page ranges. For example, leave a cover unmarked while stamping the pages that follow. Place watermarks at rotatable positions anywhere on a page, adjust their opacity or make them completely hidden. Right-to-left text, QR codes and other barcodes are supported.

Personalize and style watermark text

Watermarks can include a customer's first and last name, email, order paid date and phone number. They can also include a business name, address, order number, product name and purchased quantity. Filter hooks let developers add other customer data with PHP code.

Choose font color and style, upload custom fonts, and use selected HTML tags such as links, bold and italic text, along with text alignment styling. Line wrapping and forced breaks help format longer text. Hooks are available for further font customization.

Protect PDFs and stamp EPUB files

PDF Ink supports passwords, anti-copy and anti-print protections, AES encryption and additional file protection settings. You can keep or add metadata, edit or add PDF annotations, add embedded streams and edit outgoing URI links. External site links can be preserved; internal table-of-contents links may not always work.

The plugin can open ZIP files and watermark PDF files inside them. It can also stamp EPUB files with customized text. Options for stamped files include keeping a copy, recycling files for later downloads to conserve CPU, or scheduling their deletion.

Create links, embed files and test settings

Use a shortcode to create PDF download links on a page without an e-commerce plugin. Marked or encrypted files can also be embedded on a page. PDF Ink includes a separate watermark testing suite and utilities for previewing a watermark or stamping a file from the WordPress administration panel.

Set up and test downloads

1. Install and activate PDF Ink in WordPress.
2. Choose global watermark and protection settings, or set rules for a product or variation.
3. Select page ranges, positions, formatting and customer details.
4. Test the generated file before making it available to clients.