{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "name": "pdfunsign",
  "title": "PDFUnsign - Digital Signature Stripper & PDF Unlocker",
  "description": "Client-side privacy-first tool to remove digital signatures (PAdES, CAdES, DocMDP), reset AcroForm permission locks, and strip PDF/A read-only flags from PDF documents.",
  "version": "1.0.0",
  "homepage": "https://pdfunsign.com/",
  "repository": "https://github.com/tolpit/pdfunsign",
  "license": "ISC",
  "privacy": {
    "model": "100% Client-Side",
    "dataTransmitted": false,
    "serverStorage": false,
    "description": "Zero byte upload guarantee. Processing executes entirely inside local sandboxed browser memory or runtime."
  },
  "capabilities": {
    "tools": [
      {
        "name": "unlock_pdf",
        "description": "Strips all electronic signatures, form locks, and PDF/A restrictions from a PDF document while strictly preserving 100% native vector graphics, selectable text, and embedded fonts without rasterization.",
        "parameters": {
          "type": "object",
          "properties": {
            "file": {
              "type": "string",
              "format": "binary",
              "description": "The PDF document file (binary or base64) to unlock."
            },
            "language": {
              "type": "string",
              "enum": ["en", "fr"],
              "default": "en",
              "description": "Language used for filename suffix generation (_unlocked or _deverrouille)."
            }
          },
          "required": ["file"]
        },
        "returns": {
          "type": "object",
          "properties": {
            "clean_file": {
              "type": "string",
              "format": "binary",
              "description": "The editable, de-signed PDF document."
            },
            "signatures_removed": {
              "type": "integer",
              "description": "Count of /Sig dictionaries, widgets, and signature stamps stripped."
            },
            "permissions_unlocked": {
              "type": "boolean",
              "description": "Whether /AcroForm, /Perms, /DocMDP, and /Legal locks were purged."
            },
            "pdfa_cleared": {
              "type": "boolean",
              "description": "Whether PDF/A read-only restrictions and XMP metadata were neutralized."
            }
          }
        }
      }
    ]
  }
}