Text Watermarking Suite
Embed undetectable cryptographic signatures into documents, verify watermarks with your secret key, or strip AI tracking fingerprints with neural paraphrasing.
Embed Watermark
Conceal secret tracking messages inside your text using invisible zero-width Unicode characters. Undetectable visually, survives copy-pasting.
Detect Watermark
Scan any document to extract hidden payload messages using your secret key. Verifies document authenticity and identifies leak sources.
Remove Watermark
Neutralize synthetic watermarks from AI text (ChatGPT, Gemini) using Google T5 neural paraphrasing while maintaining meaning and tone.
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.