Find PDF review signals before payment, approval, or archiving
PDFChecker turns an uploaded invoice, contract, certificate, or statement into a PDF technical review report: file hash, structure, metadata, signatures, attachments, JavaScript/action markers, form/XFA signals, and plain-English next-step guidance.
Technical signals only. This tool does not provide legal advice, authentication, forensic conclusions, or official PDF/A certification.
Start free check≤20MB · structure · metadata · review signals
Choose fileFor finance teams
Check invoices, receipts, bank statements, and vendor PDFs before payment. Look for missing dates, later modifications, attachments, scripts, and signature clues.
For legal and contract intake
Triage contracts before approval: page count, encryption, hash, metadata, signatures, incremental updates, and action triggers in one review view.
For HR and operations
Review certificates, resumes, onboarding documents, and supplier forms before they enter internal systems.
PDF technical review report
Downloadable report path for paid users: summary, SHA-256, metadata, anomaly score, review signals, and recommended next checks.
Compliance and archiving preflight
PDF/A validation uses a configurable veraPDF service/CLI adapter and reports pass/fail, conformance profile, raw output availability, and error details.
Developer/API intake
Use the API to reject damaged, oversized, encrypted, or review-worthy PDFs before storing them in your product.