guofei9987/text_blind_watermark

Health v2 · maintenance only

Adoption not part of the score

1956 stars · 189 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A Python library that embeds invisible blind watermarks into plain text without changing its appearance or readability, using a password-protected scheme. The hidden message can later be extracted with the same password, and it survives platforms like WeChat, DingTalk, and Zhihu.

Use cases

• embed invisible watermark in text to trace leaks
• hide a secret message inside plain text
• detect source of leaked documents or chat messages
• steganography for text messages
• watermark text shared on WeChat or DingTalk
• extract hidden watermark from copied text

When to choose

• you need to embed traceable ownership info in plain text invisibly
• you want a simple pip-installable Python library with password protection
• you need watermarks that survive copy-paste across chat and web platforms

When to avoid

• you need image or video watermarking
• you need cryptographically strong steganography resistant to adversarial analysis
• you need watermarks that survive text reformatting or OCR

Facets

library · maturity active

cryptography security privacy nlp security privacy developer-tools python windows cross-platform blind-watermark text-steganography invisible-watermark data-leak-tracing steganography natural-language-processing linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="guofei9987/text_blind_watermark")