feat: update documentation

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

README.md

@@ -13,25 +13,58 @@ A Vue 2 component for rendering PDFs with draggable and resizable element overla
 
 ### Props
 
-| Prop | Type | Default |
-|------|------|---------|
-| `width` | String | `'100%'` |
-| `height` | String | `'100%'` |
-| `initFiles` | Array | `[]` |
-| `initFileNames` | Array | `[]` |
-| `initialScale` | Number | `1` |
-| `showPageFooter` | Boolean | `true` |
-| `hideSelectionUI` | Boolean | `false` |
-| `showSelectionHandles` | Boolean | `true` |
-| `showElementActions` | Boolean | `true` |
-| `pageCountFormat` | String | `'{currentPage} of {totalPages}'` |
+| Prop | Type | Default | Description |
+|------|------|---------|-------------|
+| `width` | String | `'100%'` | Container width |
+| `height` | String | `'100%'` | Container height |
+| `initFiles` | Array | `[]` | PDF files to load |
+| `initFileNames` | Array | `[]` | Names for the PDF files |
+| `initialScale` | Number | `1` | Initial zoom scale |
+| `showPageFooter` | Boolean | `true` | Show page footer with document name and page number |
+| `hideSelectionUI` | Boolean | `false` | Hide selection handles and actions UI |
+| `showSelectionHandles` | Boolean | `true` | Show resize/move handles on selected elements |
+| `showElementActions` | Boolean | `true` | Show action buttons on selected elements |
+| `pageCountFormat` | String | `'{currentPage} of {totalPages}'` | Format string for page counter |
+| `autoFitZoom` | Boolean | `false` | Automatically adjust zoom to fit viewport on window resize |
 
 ### Events
 
 - `pdf-elements:end-init` - Emitted when PDF is loaded
 
+### Methods
+
+- `adjustZoomToFit()` - Manually trigger zoom adjustment to fit viewport (useful when calling programmatically)
+
 ### Slots
 
 - `element-{type}` - Custom element rendering (e.g., `element-signature`)
 - `custom` - Fallback for elements without specific type
 - `actions` - Custom action buttons
+
+### Usage Example
+
+```vue
+<template>
+  <PDFElements
+    ref="pdfElements"
+    :init-files="pdfFiles"
+    :init-file-names="['document.pdf']"
+    :auto-fit-zoom="true"
+    @pdf-elements:end-init="onPdfLoaded"
+  >
+    <template #element-signature="{ object, onDelete }">
+      <CustomSignature :data="object" @delete="onDelete" />
+    </template>
+  </PDFElements>
+</template>
+
+<script>
+export default {
+  methods: {
+    onPdfLoaded() {
+      // PDF is loaded, auto-fit zoom is active
+    },
+  },
+}
+</script>
+```