no need for pdf-js

webapp/views/components/TextAreaInput.js

@@ -0,0 +1,10 @@
+import { h } from 'preact';
+
+export default function(props) {
+    return (
+        <label>
+            {props.text}:
+            <textarea onchange={props.onchange.bind(null, props.name)} />
+        </label>
+    );
+}