Multi-Layer Forensic Analysis

Detect PDF Tampering
in Seconds

Upload any PDF document and receive a structured Trust Score backed by 5 forensic analysis modules — metadata, signatures, structure, content, and visual forensics.

Drop your PDF here or

PDF files up to 500 MB • Supports password-protected PDFs

5 Forensic Analysis Modules

Every upload is inspected across five independent layers

Metadata Inspector

Extracts DocInfo and XMP fields, detects manipulation tools, future timestamps, and author anomalies.

Future timestamps Tool signatures

Signature Verifier

Validates digital signature ByteRange coverage, certificate expiry, and detects incremental-save attacks.

ByteRange mismatch Expired certs

Structure Analyzer

Scans raw PDF bytes for embedded JavaScript, Launch actions, hidden layers, and hybrid xref tables.

Embedded JS Launch actions

Content Stream Parser

Detects invisible text (Tr=3), complex filter chains, unusual font counts, and form-field injection.

Invisible text Filter chains

Visual Forensics

Rasterizes pages and applies Error Level Analysis, uniform region detection, and JPEG count analysis.

ELA anomalies Scan detection

Trust Score Classification

80–100
Likely Authentic
Accept with standard logging
60–79
Suspicious
Route to manual review
35–59
High Risk
Escalate to senior analyst
0–34
Compromised
Reject; initiate incident response