Verify adocument.
Upload a PDF or image. Stipple returns explainable authenticity signals and a risk rating — you make the call.
PDF or image, up to 25 MBNo account neededA review signal, not a verdictHow we handle your file
Authenticity risk
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Run a check to see the rating — an explainable risk band with the evidence behind it.
About document verification
Document verification runs a forensic authenticity inspection over a single PDF or image. Upload one file and it looks for the things a forged or doctored document tends to leave behind — editing and tampering traces, signs the file (or parts of it) was AI-generated, internal figures that don’t reconcile, and metadata or provenance that doesn’t hold together.
It returns explainable authenticity signals and an overall risk rating, so you can see why a document looks off rather than just being handed a number. It is a review signal, not a fraud verdict or a legal determination — the final call is yours.
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Upload a document
Send one PDF or image, up to 25 MB. No account is needed and nothing is stored — intake is stateless.
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The file is read and broken down
An engine extracts the text, figures, layout, and embedded metadata, and renders the pages so they can be inspected both as data and as images.
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It checks for tampering and synthetic signals
A vision model and supporting checks look for editing artefacts, inconsistent fonts or alignment, splicing, and tells that the document — or a region of it — was AI-generated.
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The numbers are reconciled
Where a document contains arithmetic — line items, subtotals, tax, totals — those figures are recomputed and compared, so totals that don’t add up are surfaced.
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You get signals and a risk rating
The findings come back as plain-language signals with an overall risk rating, each pointing at what looked wrong, so you can judge the document rather than just take a score.
What you get back
Explainable signals
Each finding is stated in plain language with the evidence behind it — what looked off and where — not just a flag.
A risk rating
An overall authenticity risk rating that summarises the signals, so you can triage at a glance before reading the detail.
Math & reconciliation findings
Where figures should add up, they’re recomputed — mismatched subtotals, tax, or totals are called out as discrepancies.
Provenance & metadata notes
Observations from the file’s metadata and history — editing software, timestamps, and other provenance details that look inconsistent.
Common uses
- Sanity-checking a payslip, bank statement, or invoice before you rely on it
- Triaging submitted documents for tampering before manual review
- Spotting AI-generated or edited images passed off as originals
- Catching totals and figures that quietly don’t reconcile
Document verification is a signal to review, not a verdict or a clearance. A low-risk result does not certify a document as genuine, and a high-risk result does not prove fraud or carry legal weight — use the signals to decide where to look, then make the final call yourself.
Questions
- Does this prove a document is genuine or fake?
- No. It is a review signal, not a verdict. A clean result is not a guarantee of authenticity, and a high-risk result is not proof of fraud — treat both as a prompt to look closer and make your own call.
- What kinds of documents can I check?
- A single PDF or image, up to 25 MB — payslips, statements, invoices, certificates, scans, and similar. It assesses authenticity, not the writing style, so it suits forms and documents rather than free-running prose.
- What does the risk rating actually mean?
- It summarises the authenticity signals found into one overall level. It reflects how much there is to review, not a legal or definitive judgement about the document.
- Can it tell if an image was AI-generated?
- It looks for signals that a document or image — or a region of it — was synthetically generated or edited. Those are indicators to weigh, not certainty, so use them alongside your own judgement.
- Do you store the file I upload?
- No. Intake is stateless and no account is needed — your document is inspected and not retained.