MVP - Scale Pages, Scale Content

public/index.js

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+import { scaleContent } from "./functions/scaleContent.js";
+import { scalePage, PageSize } from "./functions/scalePage.js";
+
+(async () => {
+    const pdfFileInput = document.getElementById('pdfFile');
+
+    pdfFileInput.addEventListener('change', async (e) => {
+        const file = e.target.files[0];
+        if (file) {
+            let pdfBuffer = new Uint8Array(await file.arrayBuffer());
+            pdfBuffer = await scaleContent(pdfBuffer, 2);
+            pdfBuffer = await scalePage(pdfBuffer, PageSize.letter);
+            download(pdfBuffer, "pdf-lib_creation_example.pdf", "application/pdf");
+        }
+    });
+})();