---
title: "react-pdf annotation layer: Links, forms, and filtering"
canonical_url: "https://www.nutrient.io/blog/react-pdf-annotation-layer-forms/"
md_url: "https://www.nutrient.io/blog/react-pdf-annotation-layer-forms.md"
last_updated: "2026-08-28T16:27:43.456Z"
description: "Enable the react-pdf annotation layer for links, render interactive PDF forms, filter annotation types, and style annotations with CSS."
---

**TL;DR**

- Import `react-pdf/dist/Page/AnnotationLayer.css` and the annotation layer renders by default — links, popup notes, highlights, and widgets become real DOM elements over the canvas.

- Set `renderForms={true}` on `<Page>` to turn PDF form fields into interactive `<input>`/`<select>`/`<textarea>` elements (AcroForm only — no XFA).

- Use `filterAnnotations` to show or hide specific subtypes, and use `onGetAnnotationsSuccess` to inspect raw annotation data.

- `react-pdf` doesn’t expose APIs for creating/editing annotations or saving filled form values back to the PDF — for that, use an SDK like [Nutrient Web SDK](https://www.nutrient.io/sdk/web-overview/).

The annotation layer renders elements that exist within the PDF file itself — links, form fields, popups, and other interactive elements. `react-pdf` renders these as HTML elements overlaid on the canvas.

## Enabling the annotation layer

The annotation layer is enabled by default. Import the CSS:

```tsx

import "react-pdf/dist/Page/AnnotationLayer.css";

```

```tsx

<Page pageNumber={1} renderAnnotationLayer={true} />  {/* Default. */}

```

Disable it:

```tsx

<Page pageNumber={1} renderAnnotationLayer={false} />

```

## What the annotation layer renders

| PDF annotation type   | Rendered as                            |
| --------------------- | -------------------------------------- |
| `Link`                | Clickable `<a>` tag                    |
| `Text` (popup note)   | Note icon with expandable popup        |
| `Highlight`           | Colored overlay                        |
| `FreeText`            | Positioned text element                |
| `Widget` (form field) | `<input>`, `<select>`, or `<textarea>` |
| `FileAttachment`      | Download icon                          |

## External link control

Control how links to external URLs behave:

```tsx

<Document
  file={file}
  externalLinkTarget="_blank"  // Open in new tab.
  externalLinkRel="noopener noreferrer nofollow"  // Default value.

>

  <Page pageNumber={1} />
</Document>

```

| Prop                 | Default                          | Description                                  |
| -------------------- | -------------------------------- | -------------------------------------------- |
| `externalLinkTarget` | Browser default                  | `"_self"`, `"_blank"`, `"_parent"`, `"_top"` |
| `externalLinkRel`    | `"noopener noreferrer nofollow"` | `rel` attribute for security                 |

## Interactive forms

Enable form interactivity with `renderForms`:

```tsx

<Page
  pageNumber={1}
  renderAnnotationLayer={true}  // Required for forms.
  renderForms={true}
/>

```

This renders PDF form fields as interactive HTML elements:

| PDF form field | HTML element              |
| -------------- | ------------------------- |
| Text field     | `<input type="text">`     |
| Text area      | `<textarea>`              |
| Checkbox       | `<input type="checkbox">` |
| Radio button   | `<input type="radio">`    |
| Dropdown       | `<select>`                |
| List box       | `<select multiple>`       |
| Push button    | `<button>`                |

### Example: PDF form viewer

The component below puts the two props together to render an interactive form:

```tsx

function FormViewer() {
  return (
    <Document file="form.pdf">
      <Page
        pageNumber={1}
        renderAnnotationLayer={true}
        renderForms={true}
      />
    </Document>
  );
}

```

Users can fill in the form fields directly in the browser. Note that `react-pdf` supports AcroForm fields only — dynamic XFA forms (common in government and banking PDFs) aren’t rendered as interactive widgets. There’s also no built-in API to save filled values back to the PDF; you’d need a library like `pdf-lib` to write the values into a new file.

## Filtering annotations

Use `filterAnnotations` to control which annotations are rendered:

```tsx

<Page
  pageNumber={1}
  filterAnnotations={({ annotations }) => {
    // Only show links, hide everything else.
    return annotations.filter((annot) => annot.subtype === "Link");
  }}
/>

```

### Common filter use cases

The `filterAnnotations` callback receives the full annotation array on every render, so any subtype comparison you write works as a filter:

```tsx

// Hide all popup notes.
filterAnnotations={({ annotations }) =>
  annotations.filter((a) => a.subtype!== "Text")
}

// Hide form fields.
filterAnnotations={({ annotations }) =>
  annotations.filter((a) => a.subtype!== "Widget")
}

// Only show specific annotation types.
filterAnnotations={({ annotations }) =>
  annotations.filter((a) => ["Link", "Highlight"].includes(a.subtype))
}

```

## Annotation callbacks

`react-pdf` exposes separate callbacks for reading raw annotation data (`onGetAnnotationsSuccess`/`onGetAnnotationsError`) and for the annotation layer finishing its render (`onRenderAnnotationLayerSuccess`/`onRenderAnnotationLayerError`):

```tsx

<Page
  pageNumber={1}
  onGetAnnotationsSuccess={(annotations) => {
    // Array of annotation objects from the PDF.
    annotations.forEach((annot) => {
      console.log(annot.subtype);    // "Link", "Text", "Widget", etc.
      console.log(annot.rect);       // [x1, y1, x2, y2].
      console.log(annot.url);        // External URL (for links).
      console.log(annot.fieldName);  // Form field name (for widgets).
      console.log(annot.fieldValue); // Form field value.
    });
  }}
  onGetAnnotationsError={(error) => {
    console.error("Failed to load annotations:", error);
  }}
  onRenderAnnotationLayerSuccess={() => {
    console.log("Annotation layer rendered");
  }}
  onRenderAnnotationLayerError={(error) => {
    console.error("Failed to render annotations:", error);
  }}
/>

```

## Image resources path

Some annotations reference external images (like stamp icons). Set the path prefix:

```tsx

<Document
  file={file}
  imageResourcesPath="/images/"  // Prefix for annotation SVG src.

>

  <Page pageNumber={1} />
</Document>

```

Or set per page:

```tsx

<Page pageNumber={1} imageResourcesPath="/images/" />

```

## Styling annotations

Customize annotation appearance via CSS:

```css

/* Style link annotations. */.react-pdf__Page__annotations.linkAnnotation a {
  border: none;
}.react-pdf__Page__annotations.linkAnnotation a:hover {
  background-color: rgba(255, 255, 0, 0.2);
}

/* Style form inputs. */.react-pdf__Page__annotations.textWidgetAnnotation input {
  font-size: 12px;
  border: 1px solid #ccc;

  padding: 2px;
}

/* Style checkboxes. */.react-pdf__Page__annotations.buttonWidgetAnnotation.checkBox input {
  accent-color: #4A90D9;

}

```

## Key points

- Import `react-pdf/dist/Page/AnnotationLayer.css` for proper annotation styling.

- `renderAnnotationLayer` is `true` by default.

- `renderForms={true}` makes form fields interactive (requires `renderAnnotationLayer`).

- `filterAnnotations` lets you selectively show/hide annotation types.

- Use `externalLinkTarget="_blank"` to open PDF links in new tabs.

- `onGetAnnotationsSuccess` gives you raw annotation data for custom processing.

- PDF form fields become standard HTML inputs — you can style them with CSS.

## How Nutrient Web SDK handles this

`react-pdf` renders annotations read-only and lets users type into AcroForm fields, but it doesn’t expose APIs to create/edit/delete annotations or to save filled form values back to the PDF. Nutrient Web SDK covers both:

```js

// Annotations — create, edit, delete (not just read-only).
const annotation = new NutrientViewer.Annotations.HighlightAnnotation({
  pageIndex: 0,
  rects: NutrientViewer.Immutable.List([
    new NutrientViewer.Geometry.Rect({ left: 50, top: 100, width: 200, height: 20 }),
  ]),
});
await instance.create(annotation);

// Forms — read and write values programmatically.
await instance.setFormFieldValues({ "Name": "Jane Doe" });

```

Nutrient supports creating, editing, and deleting 17+ annotation types, plus interactive forms with validation, calculation fields, and digital signatures — and the filled or annotated document can be exported as a flattened PDF.

[Learn more about Nutrient Web SDK](https://www.nutrient.io/sdk/web-overview/) | [Migration guide](https://www.nutrient.io/guides/web/about/migration-guides/migrating-from-react-pdf.md) | [Contact Sales](https://www.nutrient.io/contact-sales/?=sdk)

## FAQ

#### Is the <code>react-pdf</code> annotation layer enabled by default?

Yes — `renderAnnotationLayer` defaults to `true`. You only need to import the matching stylesheet (`react-pdf/dist/Page/AnnotationLayer.css`) for elements to position correctly over the canvas.

#### Why aren’t my PDF form fields interactive?

The annotation layer renders forms as static visuals unless you opt in. Set `renderForms={true}` on `<Page>` (and keep `renderAnnotationLayer={true}`). This works for AcroForm fields only — dynamic XFA forms aren’t supported by PDF.js, which `react-pdf` wraps.

#### Can I save the values a user typed into a PDF form?

Not with `react-pdf` alone. The library renders form fields as HTML inputs but doesn’t write changes back to the PDF. To persist values, read them from the DOM (or from `onGetAnnotationsSuccess` plus your own state) and use a library like `pdf-lib` to update the file, or switch to an SDK that writes form values back to the file natively.

#### How do I hide certain annotation types?

Use `filterAnnotations` to return only the subtypes you want. For example, `annotations.filter((a) => a.subtype!== "Widget")` hides form fields, and `["Link", "Highlight"].includes(a.subtype)` keeps only links and highlights.

#### How do I open PDF links in a new tab?

Set `externalLinkTarget="_blank"` on `<Document>`. `externalLinkRel` defaults to `"noopener noreferrer nofollow"` for safety; override it if you need a different `rel` policy.

#### Can I style annotations with my own CSS?

Yes. The annotation layer uses stable public class names — `.linkAnnotation`, `.textWidgetAnnotation`, `.buttonWidgetAnnotation`, etc., all scoped under `.react-pdf__Page__annotations`. Override styles after importing `AnnotationLayer.css` so your rules win the cascade.
---

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