Embeds invisible blind watermarks to enable copyright tracing and infringement evidence collection for original content.

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Blindfriendly Admin

Plugin for blind and purblind administrators of WordPress.

天无神话

This is a specialized text copyright protection tool designed for WordPress blogs. It enables copyright tracing and infringement evidence collection of original content by embedding invisible blind watermark information in article content.
Core Features: 
— Flexible Watermark Embedding Methods: Insert at paragraph end (balances invisibility and integrity), random position insertion (supports custom count or auto-calculation by word ratio), fixed interval insertion (default 20 words, suitable for long texts). 
— Rich Watermark Information Dimensions: Customizable traceability info including visitor IP (supports proxy recognition), user identification (logged-in ID/guest mark), timestamp (accurate to seconds, YYYY-MM-DD HH:MM:SS), and custom text (copyright statements, website identifiers). 
— Intelligent Adaptation Mechanism: Short paragraph filtering (configurable min word count, default 20), crawler recognition (no watermarks for search engine crawlers to avoid SEO impact), dual-end processing modes (dynamic PHP-only for non-cached scenarios, static JS-only for cached pages, hybrid mode recommended for cached sites). 
— Convenient Debugging and Management: Debug mode (displays visible watermarks as [Watermark Debug:…]), intuitive configuration panel (via WordPress backend “Text Watermark” menu), data cleaning (auto-clears config on uninstallation).
Working Principle: 
Based on Variation Selectors in the Unicode character set (<code>U+FE00-U+FE0F</code>, <code>U+E0100-U+E01EF</code>) which are visually invisible. Watermark generation converts info (IP, user ID, etc.) to byte sequences, then to variation selector characters via mapping algorithm. Invisible characters are embedded per rules and restored via reverse parsing during extraction.
Installation Requirements: 
– Server environment: PHP 7.4 
– WordPress version: 6.3
User Guide: 
Basic Configuration: 
1. Enable blind watermark in “Basic Settings”, select operation mode (hybrid mode recommended). 
2. Configure minimum paragraph word count (15-30 recommended) and insertion method. 
3. Set parameters for random/fixed interval insertion as needed.
Watermark Content Configuration: 
Check desired info in “Watermark Content Settings”: Visitor IP (default enabled), User ID (default enabled), Timestamp (default enabled), Custom text (supports domain/copyright statements).
Debugging and Verification: 
1. Enable “Debug Mode”, publish article to view visible watermarks (<code>[Watermark Debug:...]</code>). 
2. Confirm positions and content are correct, then turn off debug mode.
Watermark Extraction: 
1. Online tool: Visit <a href="https://wxsnote.cn/wbmsy" rel="nofollow ugc">Official text blind watermark</a>, paste text for parsing. 
2. Online tool: Visit <a href="https://textwatermark.zhheo.com/" rel="nofollow ugc">Heo Text Watermark</a>, paste text for parsing. 
3. Use the extraction function provided in the <a href="https://github.com/twsh0305/text_watermarking/" rel="nofollow ugc">GitHub</a> source code (file path: <code>example.php</code>).
Plugin based on open-source projects: 
– Background framework: <a href="https://github.com/Codestar/codestar-framework" rel="nofollow ugc">Codestar Framework</a> 
– Encryption scheme: <a href="https://github.com/paulgb/emoji-encoder" rel="nofollow ugc">Emoji Encoder</a>
License Details: 
Use and modification permitted, but original copyright notice must be retained (prohibits removing/modifying author info in code). Modified versions must be open-sourced as GPLv2 or later with full source code available.
Author Information: 
– Author: twsh0305 
– Blog: <a href="https://wxsnote.cn/" rel="nofollow ugc">Mr. Wang’s Notes</a> 
– Principle Introduction: <a href="https://wxsnote.cn/6395.html" rel="nofollow ugc">Implementation of text blind watermark technology</a> 
– QQ Group: <a href="https://jq.qq.com/?_wv=1027&k=eiGEOg3i" rel="nofollow ugc">399019539</a> 
– Open Source Address: <a href="https://github.com/twsh0305/text_watermarking" rel="nofollow ugc">GitHub</a>

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