●Detection · Documents & receipts
Fake document and receipt checker.
Find out if a receipt, invoice, ID or screenshot was generated, edited or photographed to look real.
●Platform
Detect it. Explain it. Act on it.
Every scan returns the same three things: a result, the signals that produced it, and a decision you can route on.
01
Detect
Every file is scanned by independent models for images, video and faces, in the web tool, the extension or by API.
3 / 4 signals corroborateCalibrated likelihood
02
Explain
See which signals fired and how strongly. No single model decides; every result comes with its reasons.
Result: AI-generated · 0.92<3s
03
Decide
A plain-language result, Real or AI-generated, with a likelihood and the reasons behind it.
●Coverage
What we check.
From generated documents to one changed digit.
Documents
Screenshots
●Method
What gets flagged.
Each check runs as an independent model. Results corroborate before a result is returned.
01
Fully AI-generated documents
Receipts, invoices and IDs created from scratch.
02
Edited details
Amounts, dates and names changed on real documents.
03
Fake screenshots
Payment confirmations, chats and bank statements.
04
Edited PDFs
Crash reports, statements and contracts.
05
Printed fakes
Fake documents printed and photographed to look real.
06
Photo swaps on IDs
A real ID with a different face.
The pipeline
A detector for each kind of media.
Image, video and voice each have their own detector. Their findings come back as one clear answer you can act on.
Image
Diffusion, GAN and face-swap images from Midjourney, DALL·E, Stable Diffusion, Flux and Firefly.
LiveVideo
Face swaps across 32 frames and fully generated video from Runway, Kling, Veo and Pika.
LiveVoice
Cloned and synthesised speech in calls, notes and recordings.
LiveWhat you get
Each file is marked Real or AI-generated, with the likelihood, signals and audit ID behind it.
One answer●Where it matters
Wherever a document unlocks money.
Fake receipts and payment screenshots.
Generated and altered ID documents.
Edited bank statements and invoices.
Fake repair estimates and police reports.
Altered certificates and references.
Edited contracts and exhibits.
●How it works
Three steps. One result.
Upload a file
Image, screenshot or PDF.
Document analysis
Text, fonts, layout, metadata and edit history.
Result and findings
See which fields were changed.
●Integration
Three ways in.
Start with the web app.
Scan in the web app or Chrome extension today. The REST API and MCP server for your AI agents are coming soon. Same detectors, same result, same audit trail.
Web app
AvailableUpload in the web app. Images, video and voice, up to 50 MB. Full results in seconds.
Chrome extension
AvailableScan any image or video from inside the tools your team already uses. No download, no upload.
API
SoonSingle scans, batch jobs and webhooks. Structured JSON with result, likelihood, signals and audit ID.
curl -X POST https://witness.vision/api/v1/detect \ -H "Authorization: Bearer $WITNESS_KEY" \ -H "Content-Type: application/json" \ -d '{"media_url": "https://…/invoice_20931.pdf"}' → 200 OK · 412ms result: ai_generated · 0.93
●Why Witness
Built to be checked.
We say what the system does, what it returns and where its limits are.
Detection built per signal
Specialized models per signal, so you get more coverage and fewer false positives than one classifier.
Reasons, not just a score
Every result shows the signals behind it and where in the file they fired.
Analysed, then gone
Media is never stored, shared or used for training.
Provenance, when it exists
Reads Content Credentials from capture device to current file.
●Explore
One engine. Every surface.
The same detection, result and audit trail across every team that handles media.
Enterprise
Insurance
Screen damage photos and injury documentation for AI generation before they reach your adjusters.
Explore →Enterprise
Legal
Know which exhibits warrant forensic review.
Explore →Enterprise
Fraud detection
Detect AI-generated images, face-swapped video and cloned voices inside your fraud stack.
Explore →Enterprise
E-commerce
Screen damage, missing-item and not-as-described evidence for AI generation and reuse, before the refund is issued..
Explore →Product
Chrome extension
Scan media on any site, social feeds, news, claims portals, case files, and get a result in the side panel..
Explore →Can it detect edited PDFs?
Yes. It checks edit history, fonts and structure.
Does it read my document?
Files are analysed and discarded. Nothing is stored or used for training.
Can it verify a real document is genuine?
It reports signs of generation and editing. It does not confirm the issuer.