# NoMark > Public, account-free browser tool for cleaning supported hidden Unicode characters and document metadata. No AI model or API key is required. Text and non-PDF documents are processed locally in a browser Web Worker. PDFs require explicit upload permission and a server slot. Findings do not establish AI authorship, and statistical AI watermark removal is not guaranteed. Public site context: Jakarta, Indonesia. Available worldwide in Indonesian and English. ## Pages - [English tool](https://nomark.ardianryan.com/en): Workspace, supported formats, processing locations, attribution, and frequently asked questions. - [Indonesian tool](https://nomark.ardianryan.com/id): The same tool and information in Indonesian. - [Privacy policy](https://nomark.ardianryan.com/en/privacy): Browser storage, PDF uploads, retention, and privacy choices. - [Terms of service](https://nomark.ardianryan.com/en/terms): Scope, permitted use, limitations, and contact. - [Full public context](https://nomark.ardianryan.com/llms-full.txt): Detailed tool facts, bilingual questions and answers, and current public policies. ## Source - [watermarks-remover](https://github.com/guillaumemeyer/watermarks-remover): The pinned upstream Python cleaning engine used by NoMark. Contact: me@ardianryan.com