David G.

I specialize in the forensic examination of digital documents—particularly PDFs—when authenticity, integrity, or document history is in question. When an original paper document is unavailable, I analyze the digital file itself to determine how it was created, modified, assembled, and processed. My approach goes beyond visual review by examining the underlying structure, objects, metadata, and technical artifacts within the file. My work focuses on identifying: * Document manipulation and alteration indicators * Hidden or suppressed content * Structural inconsistencies * Signs of page insertion, replacement, or cloned elements * Embedded assets and anomalous objects * Metadata and software/tool fingerprints * Digital signature and integrity information (when available) Core capabilities: * Forensic PDF structure analysis (objects, streams, layers, and internal components) * Reconstruction of document history and creation artifacts * Detection of editing workflows and processing tools * Technical review of questionable electronic records * Clear, professional reporting suitable for legal, investigative, and business review Deliverables: * Structured forensic findings report * Technical evidence summaries with supporting screenshots or excerpts when appropriate * Risk assessment and recommended next steps * Plain-language explanations of complex technical findings I assist attorneys, investigators, compliance teams, businesses, and organizations that need an objective technical assessment of questionable digital documents. Professional standards: I document findings objectively and distinguish between confirmed evidence, indicators, and limitations. I do not label a document “fraudulent” without sufficient evidence; instead, I provide verifiable technical findings that allow qualified decision-makers to evaluate authenticity and risk. I do not bypass encryption, defeat security controls, or access systems without authorization. If you need a disciplined forensic review of a digital document where authenticity matters, I can help provide the technical clarity needed to make informed decisions.