Detect fraudulent documents with AI
Resistant AI is the industry-leading document fraud detection system with more than 100M documents checked for fraud.
















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Detect document fraud the human eye can’t see
Our fraud protection software can check the document's metadata, internal structure, context, image consistency, backgrounds, fonts, and more, so you can confidently detect fraud that is invisible to the naked eye.
Validate documents quickly and efficiently, and reduce manual review errors with a leading automated document fraud detection system.
Scan any document, in any language in PDF or images
Our documentation verification service can verify the authenticity of documents from anywhere in the world.
- Tax forms
- Bank statements
- Invoices
- IDs & passports
- Business registrations
- and more...
Simply drag and drop your file or deploy by API
Our fraud detection solution integrates seamlessly with your existing systems, and you don't need to change your current processes.
Easily drag and drop your documents in our web interface to start detecting fraud immediately.
Or deploy our API with just 14 lines of code when you're ready to automate your document fraud checks.
Our products
Join 100s of forward-looking customers who already use our fraud prevention solution
Fake documents are a rising threat
Generative AI, deepfakes, and automation have made creating fake tax forms, bank statements, and other documents a cakewalk; and fooling regular document verification systems a rising threat.
Our AI-powered document verification service detects manipulated or forged documents automatically and accurately.

Enjoy real-time monitoring
From fake documents, to manipulated documents, document template reuse, AI fraud detection or signature forgery detection, our fraud monitoring system provides robust security in real time.
With an automated and continuous fraud monitoring, we keep you one step ahead of fraudsters at all times.
Protect your business from document fraud
Our document forgery detection software helps businesses of all sizes verify forged documents and prevent fraudulent activity.
Whether you need to verify bank statements, contracts, identity, proof of address or employment documents, our fraud protection software allows you to scan all types of documents for fraud.
Stay ahead of fraudsters with cutting-edge technology
In order to detect if a document has been tampered with, we use a layered approach (aka interlocking layers of detectors that are incredibly difficult to evade).
From simple document manipulation, photoshop edits, to template farms, deepfakes, and generative AI fraud, our fraud detector verifies a document's authenticity 500 different ways, to detect any sign of tampering, farming, or reuse; and finds threats in less than 20s.
OCR alone isn't enough
Here's what we analyze in documents:
- The full context of the document (format, layout, structure).
- How it was created (checking quality inconsistency, inserted or manipulated elements, etc.).
- How it was sent (checking device fingerprinting data or behavioral signals for example).
- If there are signs of serial fraud (checking for repetitions in background, image characteristics, lighting conditions, lens geometry, etc.).
Calculate your savings
Use the sliders below to adjust how much fraud you currently lose to document fraud, and how much you spend on document reviews on a monthly basis. See how much you can save with our document forensic software.
Average detection rate (pre-training) 86%
Average reduction in manual reviews 92%
Average detection rate (pre-training) 86%
Average reduction in manual reviews 92%
Ready to prevent fraud?
Get the industry-leading fraud detection software that will help your analysts determine if a document or photo is fraudulent. Start verifying your documents today.
Do you have any questions?
What document types can be checked for fraud?
Resistant AI is an online fraud prevention solution that is document agnostic. That means it works with any document you use, from anywhere—even those we've never seen before. That includes tax forms and other tax documents, bank statements, pay stubs, account statements, IDs, passports, invoices, and more.
What document formats do you support?
Our fraud monitoring tool works with all PDF and image formats. Different formats have different risk profiles, and we can help you set up a policy that matches your risk appetite.
In what languages can Resistant AI analyze documents?
Resistant AI analyzes documents in any language. In fact, we don't read the content of the documents to catch fraud—we analyze the whole context of how the document is made instead. Simply put, we look at how the words are written, not what they say.
How does Resistant AI scan documents for fraud?
Our document verification software analyzes every document over 500 ways for signs of tampering or fraud to ensure high precision on our verdicts. That includes internal structures, image inconsistencies, fonts in use, metadata analysis, visual similarities, etc. We then compare all incoming documents to find document reuse, template farms, and high-scale fraud attempts.
How serious is document fraud?
By analyzing millions of documents every month, we've found that 1 in 5 documents show signs of tampering, and up to 2% of documents are based on reused or generated documents indicative of crowd-sourced first party fraud or organized crime rings.
How long does it take for Resistant AI to review a document?
It takes less than 20 seconds on average for you to get your verdict when analyzing a document for fraud with Resistant AI's anti fraud solution.
How can I tell when a document is fraudulent?
We don't believe in risk scores: What do you do with a 68% vs an 82% document risk score?
Instead, Resistant AI gives you clear actionable verdicts:
- High Risk: this document is likely fraudulent and should be declined.
- Warning: this document is modified and should be reviewed.
- Normal: there’s nothing wrong with this document and can be accepted.
- Trusted: this document perfectly matches authentic ones.
How can I use Resistant AI?
You can either use Resistant AI manually by dropping documents in our document checker's web interface, or use our API integration to automate fraud detection at scale.