Embed Text Watermark
Hide secret messages, track document leaks, and protect your intellectual property seamlessly using zero-width Unicode steganography.
Only someone with this key can detect the watermark
The text below contains your hidden watermark. It looks identical to the original.
What is Text Watermarking?
Text watermarking is the process of hiding secret data within plain text without visibly altering its appearance. Our tool utilizes advanced zero-width Unicode characters—invisible spaces that your browser renders without taking up any width. By encoding your secret message into a sequence of these characters, we can interleave them seamlessly into your document.
Why Embed Watermarks in Text?
- Track Document Leaks: Distribute slightly different watermarked versions to individuals. If a leak occurs, extract the watermark to identify the source.
- Protect Intellectual Property: Claim ownership of articles, code, or essays by embedding your author ID invisibly.
- Authenticity Verification: Ensure a document hasn't been forged by checking for your cryptographic watermark.
Frequently Asked Questions
Is the watermark visible to users?
No. We use zero-width characters which are natively ignored by text rendering engines. The text will look entirely normal to any human reader.
Does it survive copy and paste?
Yes! Zero-width characters are copied along with the visible text when users highlight and copy it. However, if the text is pasted into a plain-text editor that aggressively strips non-printable characters, the watermark may be lost.
Can someone else read my embedded message?
Not if you use a secret key. Without the key, the extracted zero-width characters will decode into meaningless gibberish.