Unwatermark Report

Clean Your Documents – Detect and Erase Invisible AI Watermarks

Upload Your Document

Drag and drop a PDF, Word, or plain text file. The system analyzes the content, detects hidden watermarks, and prepares a clean version for you.

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Unwatermark Options

Slower. Rephrases the prose while checking that facts, numbers and names are kept.
Shows a detection report only. The file is not changed and nothing is produced for download.
Clean Your Documents – Detect and Erase Invisible AI Watermarks

Upload a PDF, DOCX, or plain text file. Our AI scans for hidden watermarks, rewrites the text, and removes all metadata in seconds.

Remove invisible AI watermarks from PDF, TXT, Markdown, and CSV files online. Unwatermark detects statistical text watermarks such as SynthID-Text, KGW, and Unigram, scrubs zero-width and other hidden Unicode characters, and strips provenance traces like PDF metadata and YAML front matter. An AI rewriter then rephrases the text from its meaning while a fact check keeps names, numbers, and dates intact. A PDF comes back as a clean PDF plus a plain-text copy.

Unlike AI detectors that only show a score, Unwatermark reports what it changed: the human-likeness score before and after, every rewritten word, and each removed metadata field. Need only a verdict? Detection mode gives an AI-generated text score from 0 to 100 against your own threshold and leaves the file untouched.