ocr test

package.json

@@ -34,6 +34,7 @@
     "async-mutex": "0.4.0",
     "axios": "1.2.2",
     "better-sqlite3": "7.4.5",
+    "canvas": "2.11.0",
     "chokidar": "3.5.3",
     "cls-hooked": "4.2.2",
     "commonmark": "0.30.0",
@@ -69,6 +70,7 @@
     "multer": "1.4.5-lts.1",
     "node-abi": "3.31.0",
     "normalize-strings": "1.1.1",
+    "ocrad.js": "antimatter15/ocrad.js#master",
     "open": "8.4.0",
     "pdfjs-dist": "2.8.335",
     "rand-token": "1.0.1",
@@ -85,7 +87,6 @@
     "session-file-store": "1.5.0",
     "stream-throttle": "0.1.3",
     "striptags": "3.2.0",
-    "tesseract.js": "^4.0.2",
     "tmp": "0.2.1",
     "turndown": "7.1.1",
     "unescape": "1.0.1",