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Stop PDF leaks without DRM.

Invisible, order-tied fingerprints for PDFs — trace any leak to the original purchase. No viewer lock-in.

Add a low-visibility forensic grid to each download in seconds. Buyers get normal files; you can verify any copy later with a single API call.

Read the Docs Woo plugin (ZIP)
By purchasing, you agree to our Terms, Refund Policy, EULA, and Privacy Policy.

Why InkDNA exists

Most systems try to prevent copying. InkDNA does not.
Files will be shared. Files will be leaked.
We make sure they remain attributable.
No DRM. No lock-in. No surveillance.
Only attribution.

Why InkDNA

🧬 Forensic grid & traceable

Each file gets a low-visibility forensic grid so leaks can be traced to their source — beyond visible watermarks.

⚡️ Developer-first

Simple REST API with JS & Python SDKs. Works with WooCommerce, Shopify, Zapier & Make.

🔒 Private by default

No content stored beyond processing. Bring your own storage and keep control.

🚀 Fast setup

Paste your key, call /mark and /detect, and you’re live in minutes.

Starter
…
For independent authors & micro-presses
  • 50 MB per PDF · 500 pages
  • 1,000 ops / month
  • Email support
Pro
…
For independent creators & small shops
  • 100 MB per PDF · 1000 pages
  • 2500 ops / month
  • Priority email support
Enterprise
Custom*
  • 150 MB per PDF · 2000 pages
  • 5,000 ops / month
  • Higher concurrency & SSO
  • Volume pricing, SLA, onboarding

* Final price shown at checkout. Higher limits available via sales.

Need higher limits or enterprise terms? Contact us.