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Dev tools · May 18, 2026

PQ PDF

Free PDF forensics scanner — 47 engines, multi-axis verdict: malware/exploit (behavioral sandbox, YARA, ClamAV, ML+SHAP), document-integrity tampering, and content-integrity / AI-ingestion attacks (V/AP divergence, glyph remapping, OCR poisoning, /Alt & /ActualText injection). Offline threat intel,

PQ PDF launched on May 18, 2026 with 6 votes, #1,742 of 20,538 launches that month and more than 75% of that year's launches.

What it does

Upload any PDF, get a full forensic report in seconds. PQ PDF runs 44 engines: behavioral sandbox (six PDF renderers), YARA, ClamAV, ML anomaly detection, JavaScript AST deobfuscation, XFA analysis, CVE exploit pattern matching, PDF signature forgery detection, and offline threat intel across 6.4M+ indicators. Results include MITRE ATT&CK mapping and an AI forensic report. No account needed. Files deleted immediately.

Free PDF forensics scanner — 47 engines, multi-axis verdict: malware/exploit (behavioral sandbox, YARA, ClamAV, ML+SHAP), document-integrity tampering, and content-integrity / AI-ingestion attacks (V/AP divergence, glyph remapping, OCR poisoning, /Alt & /ActualText injection). Offline threat intel, MITRE ATT&CK, AI forensic report. No data retained.

Forensic analysis of PDF files across 47 independent engines — covering categories of semantic, integrity, and parser-level analysis that most PDF scanners and malware tools don't attempt. Including: PDF name token obfuscation decoder (hex-escaped /J#61vaScript bypass), XFA FormCalc parser, PDF action dependency graph, OCG layer cloaking, Unicode/invisible text (RLO U+202E, rendering mode 3/7), trailer chain forensics (Shadow Attack), codec exploit parameters (JBIG2Globals CVE-2009-0658), physical entropy topology, image steganography (LSB chi-square), PDF/A compliance fraud, JS behavioral emulation (Acrobat API stub), font CharString emulator, XRef integrity graph, accessibility tree…from pqpdf.com

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