Invoice forensics

Invoice Manipulation Detection

Detect altered invoices, receipts, and payment documents

A genuine invoice may be edited before submission. A payment amount can change, bank details can be replaced, or a receipt can be modified. essential-fd checks invoices and expense documents for technical signs of manipulation before they are approved or paid.

File-level evidence

Find manipulation that is difficult to see

A manipulated invoice can look convincing—even when based on a genuine invoice from a real supplier. essential-fd examines the file itself instead of relying only on visual appearance. Each flag is linked to a specific forensic finding.

  • The total amount or line items were changed
  • Bank account details were added or modified
  • Supplier information was covered and rewritten
  • Dates or invoice numbers were altered
  • Text uses a different font or encoding
  • Separate image regions were added
  • Pages came from different sources
  • A receipt was recompressed after modification
  • Unexpected editing software was used
  • A template was reused across submissions

Where it fits

Invoice fraud across different workflows

Accounts payable

Screen supplier invoices for unusual changes to payment details, amounts, identities, or document structures before approval.

Vendor onboarding

Check invoices, bank confirmations, company files, and requests to send future payments to a new account.

Expense management

Detect changed totals, duplicate documents, altered dates, and manipulated receipt images.

Insurance claims

Check repair invoices, replacement receipts, estimates, and other claim files for modification.

B2B platforms

Screen payment documents submitted by sellers, service providers, and business customers.

How it works

Invoice screening in four steps

The invoice is submitted

The file enters your existing accounts payable, claims, expense, or vendor workflow.

The file is analyzed

essential-fd examines structural, visual, metadata, and content-related signals.

You receive OK or FLAG

A FLAG explains the added element, inconsistent metadata, edited region, or unusual structure found.

Your system decides

Continue automatically, route to review, or apply additional business rules.

Specific checks

Examples of invoice checks

PDF editing traces

Objects, streams, fonts, revision structures, embedded images, and other internal components.

Amount and text overlays

Added text or graphics used to cover and replace original invoice values.

Supplier and bank details

Names, addresses, IBANs, and payment data compared with reference data or prior files.

Metadata inconsistencies

Creation dates, modification dates, and producer software that indicate unexpected processing.

Image manipulation

Recompression, inserted areas, inconsistent dimensions, and unusual metadata in scans and photos.

Duplicate submissions

Invoice numbers, amounts, dates, hashes, and structures used to find related submissions.

Context matters

Not every edited invoice is fraudulent

Invoices may be converted, combined, compressed, annotated, or processed by legitimate systems. essential-fd does not treat every modification as fraud.

Checks focus on meaningful technical evidence that justifies review instead of creating a queue of harmless formatting changes.

Explore document fraud detection →

Approve

Let invoices without a forensic finding continue.

Review

Route flagged invoices to an investigator.

Protect

Hold supplier bank-detail changes until review.

Document

Store a forensic report for audit and compliance.

Integration

Connect invoice forensics to your existing process

There is no need to replace your invoice platform. Add screening through the channel that fits your current workflow.

API
SFTP
OneDrive / SharePoint
Web application

Before money moves

Check the file before approving the payment

Add invoice manipulation detection to your current payment, expense, or claims workflow.

FAQ

Frequently asked questions

What is invoice manipulation?

Changing amounts, bank details, supplier information, dates, invoice numbers, line items, or other invoice, receipt, or payment-document content.

Can you detect a changed IBAN?

essential-fd can check whether bank details appear inserted, replaced, or stored inconsistently. Extracted information can also be compared with supplier or reference data.

Can you detect fake receipts?

Photographed, scanned, and digital receipts can be checked for defined forensic signals. Available checks depend on image quality, format, and receipt type.

Does the software automatically reject invoices?

No. essential-fd returns a finding. Your organization decides whether the invoice continues, is reviewed, or is rejected.

Can essential-fd work with our existing invoice software?

Yes. It can integrate into existing accounts payable, expense, procurement, and claims processes.