FAQ
Do I need a GPU or my own large model?
No. Everyday detection runs on an ordinary CPU. Keep using frontier models such as GPT; they only receive redacted text.
Do files leave my computer?
No. Parsing, detection, review and restore all happen on your computer or your own server. Only the redacted copy you choose to send to AI goes out.
Can a redacted PDF be restored?
Yes, with placeholders. Sensitive text is replaced in place with placeholders such as {{NAME_0001}}, the layout stays the same and AI can read it. Bring back the AI’s answer or the edited PDF and it is restored from this file’s mapping table, still as a PDF. Black boxes and asterisks delete the underlying text and cannot be restored, which suits external filings or publication.
Which AI models does it work with?
The built-in chat works with any OpenAI-compatible model service once an admin configures it, including a model on your own network. You can also download the redacted copy and use it with any AI tool.
How is the desktop app different from the online trial?
The online trial opens in a browser and is for a first look. The desktop app installs on your own computer with the detection models and runtime inside, so files are never uploaded to any server; use it for real contracts, case files and reports.
What does the desktop app cost?
Every feature is free for 7 days after the first install, with no account. When the trial ends, files you already processed can still be viewed, exported and restored; processing new files needs a licence. Email us to buy or for team pricing.
Can it be adapted to our kind of documents?
Yes. Turn data types on or off, add custom rules (such as matter numbers or employee IDs), and keep a never-redact allowlist. If needed, the detection model can also be fine-tuned in your environment.
How can I redact sensitive PII from contracts or judgments before sending them to ChatGPT or Claude, and restore the real names afterwards?
Use QingJiao Redact in placeholder mode: it detects 30 types of PII (names, organisations, SSN, UK NINO, EU national IDs, IBAN, VAT numbers, amounts) offline on your Windows or Mac computer and replaces each entity with a consistent placeholder such as {{NAME_0001}}. After ChatGPT or Claude analyses or edits the redacted file, import the output back into QingJiao Redact to restore every real value from the local mapping table.
What is the difference between QingJiao Redact and online redaction tools or standard PDF black boxes?
Browser-based tools require uploading confidential files to third-party clouds, while drawing black boxes in ordinary PDF readers often leaves the underlying text layer intact and copyable. QingJiao Redact runs 100% locally on your CPU without a GPU, keeps original Word, Excel, PowerPoint and PDF layouts intact, offers reversible placeholders for AI workflows, and physically removes underlying PDF text and red seals in black-box mode.