Title: InkDNA – Fingerprinted Downloads Author: Ashar Chougle Published: 01 novèmber, 2025 Last modified: 20 May, 2026 --- Search plugins ![](https://ps.w.org/inkdna-fingerprinted-downloads/assets/icon-256x256.png?rev= 3387896) # InkDNA – Fingerprinted Downloads By [Ashar Chougle](https://profiles.wordpress.org/ashton4321/) [Download](https://downloads.wordpress.org/plugin/inkdna-fingerprinted-downloads.0.1.5.zip) * [Details](https://pap-cw.wordpress.org/plugins/inkdna-fingerprinted-downloads/#description) * [Reviews](https://pap-cw.wordpress.org/plugins/inkdna-fingerprinted-downloads/#reviews) * [Installation](https://pap-cw.wordpress.org/plugins/inkdna-fingerprinted-downloads/#installation) * [Development](https://pap-cw.wordpress.org/plugins/inkdna-fingerprinted-downloads/#developers) [Support](https://wordpress.org/support/plugin/inkdna-fingerprinted-downloads/) ## Description Developer docs: https://inkdnafingerprint.com/docs Adds an invisible, per-buyer fingerprint to each download—no DRM. **Highlights** * DRM-free: Buyers get normal PDFs/images. * Per-buyer fingerprints: Embedded at download time. * Screenshot-resilient: Survives common transforms (marking PDFs; detecting PDFs & images). * Privacy-aware: Marking happens server-side on your store. The plugin calls the InkDNA API from the server and writes a temporary marked copy locally. * Works with Woo downloadable products (no catalog changes). > This plugin uses a fixed InkDNA API base endpoint: https://ashtonx24-inkdna.hf. > space ### External services This plugin connects to your InkDNA API from the server. **Service host** – https://ashtonx24-inkdna.hf.space (API base) **What is sent (server API)** – For local product files: `POST /mark` with the PDF file as multipart/form-data. – For remote product URLs: `POST /mark/url` with JSON body `{ "url": "" }`. – Headers on both requests: `X-Order- Id` (the WooCommerce order ID) and `X-API-Key` (set in Settings InkDNA). **When it is sent** – Only when a buyer initiates a download. The store server calls the InkDNA API, receives a fingerprinted PDF, stores it temporarily under ` wp-content/uploads/inkdna-fingerprinted-downloads/`, and serves that local file to the buyer. **What returns** – A fingerprinted (marked) PDF, unique per order. **Service policies** – Terms: https://inkdnafingerprint.com/terms.html – Privacy: https://inkdnafingerprint.com/privacy.html – Refunds: https://inkdnafingerprint. com/refunds.html – EULA: https://inkdnafingerprint.com/eula.html ## Installation 1. Upload the ZIP and **Activate** the plugin. 2. Go to **Settings InkDNA** and set: 3. * **API Key** (the key assigned/created for your shop) * API Base (default https://ashtonx24-inkdna.hf.space) and your API Key. The plugin performs server-side marking on download. 4. In WooCommerce, create a **Downloadable** product and attach a PDF. 5. Place a test order and download. Each download is uniquely fingerprinted via the InkDNA loader + API. ## FAQ ### Do I need an InkDNA account? Yes — you or your tenant must have an InkDNA tenant and API Key. The plugin requires that API Key to enable stamping. ### What file types are supported? **Marking:** PDFs **Detecting:** PDFs and images (PNG/JPEG) — **handled outside WordPress** (see “How do I verify a leak?”). ### File size limits? Server defaults typically allow ~25–100 MB (configurable). WordPress/PHP upload limits may also apply. ### Is this DRM? No. Files remain standard PDFs/images. We embed a robust, invisible fingerprint so you can attribute leaks even after edits/screenshots. ### Does this store my files or customer data? The plugin stores a temporary, per-order fingerprinted PDF under wp-content/uploads/ inkdna-fingerprinted-downloads/ in order to serve the download. No API keys are exposed to the browser. ### How do I verify a leak? Use the **Verify** page at your InkDNA endpoint (e.g., `/verify.html`) or the hosted verification tool documented at https://inkdnafingerprint.com/docs. Upload the suspect file and review the signed evidence JSON. ### Caching/CDN? Do not CDN-cache the API responses; each PDF is unique per buyer. Re-downloads use the local marked copy cached by the plugin in `/wp-content/uploads/inkdna-fingerprinted- downloads/`. ### Do I have to send an Order ID? Yes. The fingerprint is bound to the order identifier. If omitted at marking time, later verification can still estimate but won’t be provable to a specific purchase. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “InkDNA – Fingerprinted Downloads” is open source software. The following people have contributed to this plugin. Contributors * [ Ashar Chougle ](https://profiles.wordpress.org/ashton4321/) [Translate “InkDNA – Fingerprinted Downloads” into your language.](https://translate.wordpress.org/projects/wp-plugins/inkdna-fingerprinted-downloads) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/inkdna-fingerprinted-downloads/), check out the [SVN repository](https://plugins.svn.wordpress.org/inkdna-fingerprinted-downloads/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/inkdna-fingerprinted-downloads/) by [RSS](https://plugins.trac.wordpress.org/log/inkdna-fingerprinted-downloads/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 0.1.5 Checked and verified working for wp 7.0 #### 0.1.4 * Documentation sync and upload-path fix. #### 0.1.3 * Marking-only plugin: removed in-admin verification to keep the extension lean and review-safe. * Fixed API base `https://ashtonx24-inkdna.hf.space`; marking is performed server- side (no client loader required). * Updated docs and external-services section for transparency. #### 0.1.2 * Added “External services” section and developer docs link. #### 0.1.1 * Minor copy updates. #### 0.1.0 * Initial release: per-buyer fingerprinting via external API. ## Meta * Version **0.1.5** * Last updated **5 months ago** * Active installations **Fewer than 10** * WordPress version ** 6.0 or higher ** * Tested up to **7.0.7** * PHP version ** 8.0 or higher ** * Language * [English (US)](https://wordpress.org/plugins/inkdna-fingerprinted-downloads/) * Tags * [downloads](https://pap-cw.wordpress.org/plugins/tags/downloads/)[ecommerce](https://pap-cw.wordpress.org/plugins/tags/ecommerce/) [fingerprinting](https://pap-cw.wordpress.org/plugins/tags/fingerprinting/)[security](https://pap-cw.wordpress.org/plugins/tags/security/) [watermark](https://pap-cw.wordpress.org/plugins/tags/watermark/) * [Advanced View](https://pap-cw.wordpress.org/plugins/inkdna-fingerprinted-downloads/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/inkdna-fingerprinted-downloads/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/inkdna-fingerprinted-downloads/reviews/) ## Contributors * [ Ashar Chougle ](https://profiles.wordpress.org/ashton4321/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/inkdna-fingerprinted-downloads/)