feat: add mark checkboxes as yes example

Author: InosRahul

playground/forms/mark-all-checkboxes/index.ts

@@ -0,0 +1,22 @@
+import type { Instance } from "@nutrient-sdk/viewer";
+import { baseOptions } from "../../shared/base-options";
+
+window.NutrientViewer.load({
+  ...baseOptions,
+  toolbarItems: [
+    ...window.NutrientViewer.defaultToolbarItems,
+    { type: "form-creator" },
+  ],
+}).then(async (instance: Instance) => {
+  const formFields = await instance.getFormFields();
+
+  for (const formField of formFields) {
+    if (
+      formField instanceof window.NutrientViewer.FormFields.CheckBoxFormField
+    ) {
+      await instance.setFormFieldValues({
+        [formField.name]: ["Yes"],
+      });
+    }
+  }
+});

playground/forms/mark-all-checkboxes/playground.mdx

@@ -0,0 +1,6 @@
+---
+category: forms
+title: Mark All Checkboxes
+description: Programmatically check all checkbox form fields in a PDF document.
+keywords: [forms, checkbox, form-field, automation]
+---