Smart Protection for Your PDFs: Watermarking, Encryption, and Passwording

What if you could tattoo PDF files? You can! Ink ’em and make your PDFs more than look tough.

Download PDF Ink   Learn More

Cartoon image of paper airplanes (folded PDF files) flying away over cattails, with clouds in background.

Don’t just release your files into the wild — tag them first, so they don’t get lost!

Introducing PDF Ink

PDF Ink is a versatile tool that functions both as a WordPress plugin and a standalone PHP add-on. It enables dynamic PDF manipulation at the time of download, allowing for customization before delivery. Based on available data — such as WooCommerce, Download Monitor, or Easy Digital Downloads orders, or form submissions — you can add personalized content to your PDFs, including visible or invisible text and images. Additionally, you can enhance security by adding encryption, file protection, and password features.

PDF Ink is compatible with leading PDF libraries, including TCPDI, FPDI, FPDI PDF-Parser*, FPDF, TCPDF, and SetaPDF-Stamper*, for both PDF reading and writing needs.

As a replacement for several legacy plugins — including WaterWoo PDF, EDDiMark PDF, WooCommerce PDF Stamper, PDF Stamper for WooCommerce, EDDiStamper, DLM Stamper, and WP TCPDF Bridge, all trusted for over a decade — PDF Ink offers a comprehensive solution. If you’re an existing license holder, you can access PDF Ink by simply logging in and downloading the latest version.

*Optional 3rd party upgrades

Features

Just a taste of what PDF Ink can do…

Display

  • Preserve full PDF fidelity including forms, layers, and internal links (using SetaPDF Stamper)
  • Preserves existing PDF metadata (title, author, creation date, keywords, subject)
  • [pdfink] WP shortcodes for display of links and forms prompting manipulated PDF downloads, and manipulated PDF embeds

PDF Stamping

  • Supports all versions of PDF
  • Fine control over how each PDF is handled
  • Accepts any page size and PDFs with various page sizes
  • Stamps anywhere on the page, once or more on each page
  • Stamp all pages, odd or even, start and stop on any page, omit any pages as desired
  • Supports image (PNG/GIF/JPG), HTML, and text stamping
  • Nearly any font, in any color and size
  • 0-100% stamp opacity
  • RTL and 1-359º rotation
  • Easily add 1D and 2D barcodes to PDFs (using TCPDF)

PDF Protection

  • Optionally set user and/or owner passwords
  • Open password-protected files before re-manipulation with SetaPDF-Stamper
  • RC4 and AES encryption with OpenSSL
  • Prevent copying, annotating, printing, modifying, extraction and/or form-filling of your PDF files if desired
  • Manipulate PDFs in the privacy of your wp-admin, either in the Sandbox or optionally during Media File uploads

Integration

  • PDF Ink integrates fully with WooCommerce, Easy Digital Downloads and Download Monitor, acting on clicks of specified downloads
  • Stamp with customer data such as name, phone, email, address, order number, date, date+, qty. ordered etc.
  • Compatible with WooCommerce Amazon S3, Free Downloads WooCommerce, and WooCommerce Bulk Downloads

Not using WordPress? That’s fine. PDF Ink can be instantiated and run outside WP with PHP.

If there’s something you need that isn’t listed here, try searching the site and/or get in touch with your question.
We pride ourselves on excellent customer support and the success of PDF Ink.

Common Uses

Cartoon graphic of a big barcode printed on a piece of paper sitting up against a tablet.

• Sell with WooCommerce, Easy Digital Downloads, or Download Monitor to stamp PDFs with customer info upon every download.

• Great for selling sheet music! Print licensing info in the margins.

• Create PDF gift certificates, certifications and licenses customized for the recipient.

• Password PDFs with the downloader’s email address or phone number or…

• Add a QR code to your PDF file

• Discourage printing and/or copying of text from your PDF

• Add your logo anywhere on PDF pages

• Use a [pdfink] shortcode to put links to PDFs anywhere on your WP site; when clicked, they are manipulated.

• Thwart intellectual property theft and assert your branding!

Cartoon graphic of robber peeking over at us, locks are reflected in their eyes, though.

Download PDF Ink

PDF Ink is hands-down the most robust and configurable PDF manipulation plugin available for WordPress.

We are so happy to have you join us.

Current version: 1.0.3

All licenses come with
one year of support
and renew at 35% off.

Choose a license:

Purchase is not a subscription.

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