Is Adobe Acrobat: PDF edit, convert, sign tools safe?

// decode-cvengst.js — decode Adobe Acrobat extension "cvEngSt" engagement state.
//
// The extension stores the hostnames it matched against Adobe's qualifying
// list under chrome.storage.local key "cvEngSt". Hostnames are written through
// a fixed character-substitution table defined in common/domain-encoding.js,
// so the raw storage value is not human-readable. This script reverses it.

const PLAIN  = "abcdefghijklmnopqrstuvwxyz0123456789.-";
const CIPHER = "tubg6lxdq8jc1m9-vw.pfhskar0oi5zn372ye4";

const DECODE = {};
for (let i = 0; i < PLAIN.length; i += 1) DECODE[CIPHER[i]] = PLAIN[i];

function decodeDomain(token) {
  return String(token)
    .toLowerCase()
    .split("")
    .map((ch) => DECODE[ch] || ch)
    .join("");
}

function decodeState(state) {
  const parsed = typeof state === "string" ? JSON.parse(state) : state;
  const window = parsed && parsed.rw ? parsed.rw : {};
  const days = {};
  for (const [dayKey, tokens] of Object.entries(window)) {
    if (Array.isArray(tokens)) days[dayKey] = tokens.map(decodeDomain);
  }
  return {
    classification: parsed && parsed.tg ? parsed.tg : "(none)",
    identifiedAt: parsed ? parsed.idTs : undefined,
    retentionExpiresAt: parsed ? parsed.rtEx : undefined,
    reportedToAnalytics: Boolean(parsed && parsed.evSn),
    rulesVersion: parsed ? parsed.cfgV : undefined,
    enterpriseInstall: Boolean(parsed && parsed.vEn),
    rollingWindow: days,
  };
}

// --- Browser use -----------------------------------------------------------
// Paste everything above into the service-worker console of the extension
// (chrome://extensions -> Adobe Acrobat -> "service worker"), then run:
//
//   chrome.storage.local.get("cvEngSt", (r) => console.log(decodeState(r.cvEngSt)));
//
// --- Node use --------------------------------------------------------------
// Save the raw cvEngSt value to a file and run: node decode-cvengst.js state.json
if (typeof process !== "undefined" && process.argv && process.argv[2]) {
  const fs = require("node:fs");
  console.log(JSON.stringify(decodeState(fs.readFileSync(process.argv[2], "utf8")), null, 2));
}

if (typeof module !== "undefined") module.exports = { decodeDomain, decodeState };