Document Intelligence

Turn invoices into compliance evidence.

Classify supplier invoices against the GHG Protocol. Generate audit-ready waste diversion ledgers. No manual work, no spreadsheets.

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GHG Protocol aligned · CSRD ready · No data retained

PROCESSING

Raw Document

Classified Output

Steel ProductsGREEN

3310A0124.4kgCO₂e

LogisticsAMBER

4840A018.7kgCO₂e

PackagingGREEN

3220A031.2kgCO₂e

TOTAL EMISSIONS

174.3 kgCO₂e

GHG PROTOCOL

Cat. 1 · Spend-based

zerodocpro · GHG Protocol aligned3 items classified

TWO DOMAINS. ONE PLATFORM.

Choose your compliance workflow.

♻️

Waste Management

Classify waste invoices and generate audit-ready diversion ledgers

Upload waste hauler invoices, extract every stream by weight and material, and produce a certification-ready ledger mapped to UL 2799, TRUE Zero Waste, and Zero Waste Scotland requirements.

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🌍

Scope 3 Carbon Accounting

Classify supplier invoices and generate GHG Protocol Category 1 emissions inventory

Upload supplier invoices, apply the GHG Protocol spend-based method, and generate an audit-ready Scope 3 Category 1 inventory aligned with CSRD / ESRS E1 disclosure requirements.

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✓GHG Protocol aligned✓CSRD / ESRS E1 ready✓Audit lineage with SHA-256✓No data retained after processing✓GDPR compliant

One question. Two products.

Do you already have an Excel template your auditor uses?

YES — I HAVE A TEMPLATE

Invoice Processor

Your auditor gave you a spreadsheet. We read your invoices and populate it — without touching a single existing cell.

Every invoice extracted automatically
Mapped to your column headers
Formulas, macros, charts untouched
Your template. Just complete.

Get started →

NO — BUILD IT FOR ME

Preverify

You need a complete, defensible audit ledger built from scratch — with your diversion rate calculated and every decision documented.

6-tab certified Waste Ledger
Every waste stream classified
Diversion rate calculated
SHA-256 tamper-evident hash

Learn more →

Both products read the same invoice PDFs and produce audit-ready output. The difference is entirely in what you bring to the table.

THE PROBLEM

Same problem. Two perspectives.

PREPARING FOR CERTIFICATION

Don't find out on audit day.

Manual data entry from invoice PDFs
Weeks of preparation time
Auditor engaged at significant cost
Find out if you pass on audit day
Fail = wasted fee, start again

Upload all invoices in one batch
Diversion rate calculated instantly
Know your score beforehand
Only proceed when ready

See how it works for facilities →

RUNNING AUDITS FOR CLIENTS

Stop processing invoices by hand.

Client hands you hundreds of PDFs
Junior staff spend days on entry
Transcription errors in findings
Tight timelines, less audit time

Upload client invoices directly
Extracted and classified automatically
Mapped to your audit template
Confidence scores flag what needs review

See how it works for consultants →

The audit doesn't have to be a surprise.

HOW IT WORKS

Three steps. No manual entry.

Drop your invoices

Upload supplier invoice PDFs — from recyclers, composters, waste haulers, landfill operators. Digital, scanned, or image-only. We handle every format.

We extract everything

Supplier name, material type, weight, diversion category, totals — pulled automatically from every invoice. No manual entry. No transcription errors.

You get your report

A complete waste diversion breakdown exported to your Excel template — or built as a certified 6-tab Waste Ledger. Every number defensible.

From a folder of PDFs to an audit-ready report in under 10 minutes.

WHAT YOU GET

A report your auditor already understands.

Every extracted field traced back to its source invoice.

Maps to any template

Upload your auditor's Excel template. Data maps to your column headers automatically. Review and approve before anything is written.

Every invoice, one spreadsheet

One row per line item. Supplier, material, weight, diversion category, date, totals — structured and traceable to the source PDF.

Nothing broken, nothing lost

Existing formulas stay intact. Macros preserved. We only ever append new rows — existing cells are never touched.

Flagged for review

Every row carries a confidence score. Anything below threshold is flagged in amber before export — review only what needs it.

LLM quality check

An optional AI pass checks for OCR errors, garbled names, and implausible values before data reaches your spreadsheet.

Full audit trail

Raw extraction data and confidence scores retained for every batch. Every number is defensible.

INFRASTRUCTURE

Built to handle audit evidence.

Invoice PDFs are legal evidence in a certification audit. We treat them accordingly.

ENCRYPTION

AES-256 hardware encryption

Keys managed inside a hardware security module. The key never leaves the hardware — all operations happen inside it.

VAULT ISOLATION

Two services. Two vaults.

Invoice processing and report generation run in completely separate encrypted vaults. A security event in one cannot reach the other.

DATA RETENTION

Zero — deleted post-processing

Uploaded PDFs auto-deleted after 90 days at infrastructure level. Generated ledgers retained permanently in a separate encrypted store.

FILE ACCESS

No public access. Ever.

All storage is NoPublicAccess. Every file requires authenticated access. There is no URL that exposes your clients' invoices.

Infrastructure version-controlled in Terraform. Every change tracked and auditable.

PRICING

Simple pricing.

Zero waste audits happen once or twice a year. You shouldn't pay monthly for annual work.

no card needed

See it work on your invoices.

Upload 10 invoices and see the full extraction preview in your browser. No export. Just proof.

Preview only · No export · 10 invoices

Try free now

One client. One audit. Done.

Everything you need to walk into certification — or hand a client their pre-audit report — prepared.

Up to 500 invoices
Full Excel export
Maps to your auditor's template
LLM quality check included
Confidence scores + audit trail
30-day batch access

$399

per year

Running multiple audits?

For sustainability consultants managing multiple client facilities.

Unlimited audits and invoices
Multi-user access
White-label Excel output
Priority support

Custom pricing

Running audits for your own clients?

For consultants and firms managing zero waste audits across multiple client facilities.

Unlimited clients and invoices
Human review layer
Dedicated account manager
API access
Security docs on request

Get in touch →

Not ready to buy? The free preview shows you exactly what we extract — no card, no countdown.

FAQ

Common questions.

We support digital PDFs (text-based), scanned PDFs, and image-only PDFs. Our multi-engine extraction pipeline handles every format automatically. The best available method is selected per-invoice based on confidence scoring.

No. Invoice Processor only ever appends new rows to your spreadsheet. Existing cells, formulas, macros, charts, and formatting are never touched. We read your column headers, map extracted data to them, and write below your last row. That's it.

Every extracted row carries a confidence score from 0.0 to 1.0. Rows below the threshold are flagged in amber before export — you review only what needs it. In our test suite, 29/29 parity tests pass across digital and scanned invoice fixtures.

Uploaded PDFs are stored with AES-256 encryption in a hardware security module. Invoice processing and report generation run in separate encrypted vaults — a security event in one cannot reach the other. Uploaded files are auto-deleted after 90 days at infrastructure level. There is no public URL that exposes your files.

The Preverify Waste Ledger is built around common zero waste diversion rate methodologies. Diversion rate calculations follow standard formulas including inadvertent landfill exclusion rules. The ruleset version and SHA-256 hash are recorded in every ledger so the methodology is fully traceable.