document-security

Reads a PDF and reports what is still inside it that you may not mean to send: text under a box that was never removed, an earlier version of the file, an attachment, a name in the properties. Runs entirely on your machine.

PDF Forensics Analyzer — FastAPI web application for automated PDF tampering detection, xref revision analysis, digital signature verification, and visual diff generation.

A malicious forensic triage toolkit for examining Office and PDF files for advanced forms of malware payloads before execution in sensitive environments.

Prevent signature theft through cryptographic binding and steganography

See exactly what the model reads. Open-source document trust scanner and benchmark for AI pipelines.

File integrity scanner detecting hidden, concealed, or adversarial content across 23 file kinds. Input-layer application of the Munafiq Protocol

Research code for robust local-region image watermarking with adaptive geometric correction.

AI-powered Content Disarm & Reconstruction engine for PDF and DOCX files. Detects and strips malicious JavaScript, macros, OLE objects, and embedded threats using PyMuPDF, python-docx, and Groq LLM analysis. Built with FastAPI + vanilla JS frontend.

Python tool for adding password protection to PDF files. Secure your sensitive documents with encryption.

Bulk metadata scrubbing for PDF, Office and image files — CLI, local web UI and a REST API, with a before/after proof report.

Local-first document leak inspector for PDF, Office, and image files

Finds prompt-injection payloads hidden inside resume PDFs — text a human reviewer never sees but an AI screener reads and acts on. Five independent detection layers.

FastAPI and TensorFlow ML microservice for detecting prompt injection in documents using Google RETVec, Conv1D CNN classification, OCR text analysis, and real-time threat inference.

Post-quantum secure document sharing with per-recipient invisible watermarks and leak tracing to a signed, 2-of-3 ledger record, with offline-verifiable evidence.

Local CLI and TUI to inspect and remove protection from Office and PDF files you are authorized to modify.

Permanently redact sensitive text from PDF documents — native macOS app with irrecoverable text removal

Redact PDFs on your own machine. Content is removed from the file, not hidden under a black rectangle, and a post-redaction audit blocks any export that still contains it.

Python toolkit building intelligent document containers — ordinary .docx and .odt files that also carry signed, encrypted payloads through five OOXML/ODF channels: custom XML parts, package parts, metadata properties, image LSB steganography, and MCE AlternateContent. Ed25519 manifests, AES-256-GCM, Merkle binding.

Unified scanner for source code and documents — rule-based vulnerability and malware detection

Python library for permission-aware retrieval in RAG: every user gets only the chunks they are allowed to read. Works with pgvector, Pinecone, Qdrant, Elasticsearch and 10 more stores, OpenFGA, SpiceDB, OPA, Cedar or ACLs, and LangChain, LlamaIndex, Haystack and MCP. Fails closed.