PDF Ink is the full version of PDF Ink Lite. When a customer accesses a download, it applies the configured watermark and file protections to PDFs used with WooCommerce, Easy Digital Downloads, or Download Monitor. Use shared settings across PDFs or set different watermarks and passwords for each product or product variation. Shortcodes can also create PDF download links on any page without an e-commerce plugin.

For work beyond WordPress, PDF Ink can perform inline PDF manipulation on PHP-based websites. On WordPress pages, marked or encrypted files can be embedded.

Set rules for products and pages

Choose where watermarking starts and ends, or apply it to every page, odd pages, even pages, or specified ranges. These controls can leave a cover page unmarked or limit a watermark to selected parts of a document.

Place multiple watermarks anywhere on a page, with rotatable positions. Adjust opacity or make a watermark fully hidden. Right-to-left text is supported, and uploaded fonts can be used for stamping; hooks allow further font customization.

Personalize watermark text

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

Formatting settings include font color and style, line wrapping, and forced line breaks. Selected HTML tags support links, bold and italic text, and alignment. Watermarks can also include QR codes or other barcodes.

Protect and manage files

PDF Ink supports passwords, anti-copy and anti-print protections, AES encryption, and additional file protection settings. You can keep or add file metadata, edit or add PDF annotations, add embedded streams, and edit outgoing URI links. Website links in a watermarked PDF can be preserved, though internal table-of-contents links may not always work. The SetaPDF-Stamper add-on can add support for those internal links.

The extension can open ZIP files and watermark PDFs inside them, and stamp EPUB files with customized text. File options let you keep stamped copies, reuse them for later downloads to conserve processing, or schedule their deletion.

Configure and test downloads

Install and activate PDF Ink in WordPress for downloads through WooCommerce, Easy Digital Downloads, Download Monitor, or shortcode links. Set global watermark and protection rules, then add product or variation-specific settings as needed. Choose page coverage, placement, text, and customer data, and test the generated file before making it available to clients. Settings panels and a separate watermark testing suite help preview a watermark or test a stamped file from the WordPress administration area.