trying decoder hints

app/lib/pdf/pdf2png.ts

@@ -1,6 +1,8 @@
 import { PDFPageProxy } from 'pdfjs-dist';
-import { BrowserPDF417Reader } from '@zxing/browser';
+import { BrowserPDF417Reader, BrowserMultiFormatReader } from '@zxing/browser';
+
 import * as pdfJSx from 'pdfjs-dist';
+import { BarcodeFormat, DecodeHintType } from '@zxing/library';
 
 
 /**
@@ -47,11 +49,17 @@ export async function pdf2canvas(event: React.ChangeEvent<HTMLInputElement>): Pr
 
     await page.render({ canvasContext: context as CanvasRenderingContext2D, viewport }).promise;
 
-    const codeReader = new BrowserPDF417Reader();
+    const hints = new Map();
+    hints.set(DecodeHintType.POSSIBLE_FORMATS, [ BarcodeFormat.PDF_417 ]);
+    // hints.set(DecodeHintType.TRY_HARDER, true);
+    hints.set(DecodeHintType.PURE_BARCODE, false);
 
+    const codeReader = new BrowserPDF417Reader(hints);
+    // const codeReader = new BrowserMultiFormatReader(hints); 
     const result = await codeReader.decodeFromCanvas(canvas);
 
     console.log(result);
+    console.log(result.getResultPoints());
 
     // codeReader.decode(imageData);
     

package-lock.json

@@ -9,6 +9,7 @@
         "@tailwindcss/typography": "^0.5.10",
         "@types/node": "20.5.7",
         "@zxing/browser": "^0.1.4",
+        "@zxing/library": "^0.20.0",
         "autoprefixer": "10.4.15",
         "bcrypt": "^5.1.1",
         "clsx": "^2.0.0",
@@ -1721,7 +1722,6 @@
       "version": "0.20.0",
       "resolved": "https://registry.npmjs.org/@zxing/library/-/library-0.20.0.tgz",
       "integrity": "sha512-6Ev6rcqVjMakZFIDvbUf0dtpPGeZMTfyxYg4HkVWioWeN7cRcnUWT3bU6sdohc82O1nPXcjq6WiGfXX2Pnit6A==",
-      "peer": true,
       "dependencies": {
         "ts-custom-error": "^3.2.1"
       },
@@ -7443,7 +7443,6 @@
       "version": "3.3.1",
       "resolved": "https://registry.npmjs.org/ts-custom-error/-/ts-custom-error-3.3.1.tgz",
       "integrity": "sha512-5OX1tzOjxWEgsr/YEUWSuPrQ00deKLh6D7OTWcvNHm12/7QPyRh8SYpyWvA4IZv8H/+GQWQEh/kwo95Q9OVW1A==",
-      "peer": true,
       "engines": {
         "node": ">=14.0.0"
       }

package.json

@@ -13,6 +13,7 @@
     "@tailwindcss/typography": "^0.5.10",
     "@types/node": "20.5.7",
     "@zxing/browser": "^0.1.4",
+    "@zxing/library": "^0.20.0",
     "autoprefixer": "10.4.15",
     "bcrypt": "^5.1.1",
     "clsx": "^2.0.0",