Инструменты скрытой маркировки и защиты текста от копирования

Embed undetectable cryptographic signatures into documents, verify watermarks with your secret key, or strip AI tracking fingerprints with neural paraphrasing.

Tool 1: Protection

Embed Watermark

Conceal secret tracking messages inside text using invisible zero-width Unicode characters.

Launch Embed Tool

Tool 2: Verification

Detect Watermark

Scan documents to extract hidden payload messages using your secret cryptographic key.

Launch Detect Tool

Tool 3: Privacy Shield

Zero-Width Sanitizer

Detect and strip invisible tracking characters (ZWSP, ZWNJ, BOM) from copied text in 1 click.

Launch Sanitizer

Tool 4: AI Removal

Remove AI Watermark

Neutralize synthetic watermarks from AI text (ChatGPT, Gemini) via Google T5 neural paraphrasing.

Launch Remove Tool

How Text Watermarking Works

Unlike images where watermarks are applied to pixels, text watermarking manipulates non-printing Unicode character points or grammatical structures:

1. Invisible Steganography

Binary data encoded as zero-width Unicode characters (ZWSP, ZWNJ) placed within normal words.

2. HMAC-SHA256 Encryption

Only someone who possesses the original key can decode or verify the presence of the secret message.

3. Neural Paraphrasing

Deep learning T5 transformer model reconstructs sentence structures to erase statistical AI token watermarks.

Read the complete engineering guide on zero-width watermarks →