---
product: "AG Grid"
title: "PDF Export - Customising Content"
description: "PDF Export uses Value Getters and, by default, . Export callbacks can replace the resulting text without changing the values displayed in the grid."
enterprise: true
framework: javascript
version: "36.2.0"
related:
    - title: "Styles"
      url: "https://www.ag-grid.com/javascript-data-grid/pdf-export-styles/"
    - title: "Languages"
      url: "https://www.ag-grid.com/javascript-data-grid/pdf-export-languages/"
    - title: "Extra Content"
      url: "https://www.ag-grid.com/javascript-data-grid/pdf-export-extra-content/"
    - title: "Images"
      url: "https://www.ag-grid.com/javascript-data-grid/pdf-export-images/"
    - title: "Watermarks"
      url: "https://www.ag-grid.com/javascript-data-grid/pdf-export-watermarks/"
    - title: "Rows"
      url: "https://www.ag-grid.com/javascript-data-grid/pdf-export-rows/"
    - title: "Columns"
      url: "https://www.ag-grid.com/javascript-data-grid/pdf-export-columns/"
    - title: "Hyperlinks"
      url: "https://www.ag-grid.com/javascript-data-grid/pdf-export-hyperlinks/"
    - title: "Master Detail"
      url: "https://www.ag-grid.com/javascript-data-grid/pdf-export-master-detail/"
    - title: "Page Setup"
      url: "https://www.ag-grid.com/javascript-data-grid/pdf-export-page-setup/"
    - title: "API Reference"
      url: "https://www.ag-grid.com/javascript-data-grid/pdf-export-api/"
llms: "https://www.ag-grid.com/llms.txt"
---

# PDF Export - Customising Content

PDF Export uses Value Getters and, by default, [Value Formatters](https://www.ag-grid.com/javascript-data-grid/value-formatters/#formatting-for-export). Export callbacks can replace the resulting text without changing the values displayed in the grid.

## Customising Cell and Row Group Values

Use `processCellCallback` and `processRowGroupCallback` in `defaultPdfExportParams` to customise exported body cells and row groups.

```js
const gridOptions = {
    processCellCallback: (params) => `_${params.value ?? ''}_`,
    processRowGroupCallback: (params) => `row group: ${params.node.key ?? ''}`,

    // other grid options ...
}
```

See below the functions on the `PdfExportParams` interface to customise exported grid cell and row group values.

| Property | Type | Required | Default | Description |
| --- | --- | --- | --- | --- |
| `processCellCallback` | `Function` |  |  |  |
| `processRowGroupCallback` | `Function` |  |  |  |

The following example adds the prefix `row group: ` to row-group values and surrounds body-cell values with underscores in the exported PDF.

#### PDF Export - Customising Row Groups

```ts
import {
  ClientSideRowModelModule,
  GridApi,
  GridOptions,
  ModuleRegistry,
  ProcessCellForExportParams,
  ProcessRowGroupForExportParams,
  createGrid,
  enableDevValidations,
} from "ag-grid-community";
import {
  ContextMenuModule,
  PdfExportModule,
  RowGroupingModule,
} from "ag-grid-enterprise";

if (process.env.NODE_ENV !== "production") {
  // Enable extended validations only for development
  enableDevValidations();
}

ModuleRegistry.registerModules([
  ClientSideRowModelModule,
  ContextMenuModule,
  PdfExportModule,
  RowGroupingModule,
]);

interface ResultData {
  athlete: string;
  country: string;
  sport: string;
  gold: number;
}

let gridApi: GridApi<ResultData>;

const gridOptions: GridOptions<ResultData> = {
  columnDefs: [
    { field: "athlete", minWidth: 180 },
    { field: "country", rowGroup: true, hide: true },
    { field: "sport", minWidth: 140 },
    { field: "gold" },
  ],
  defaultColDef: {
    flex: 1,
    minWidth: 100,
  },
  groupDefaultExpanded: -1,
  defaultPdfExportParams: {
    processCellCallback(params: ProcessCellForExportParams): string {
      return `_${params.value ?? ""}_`;
    },
    processRowGroupCallback(params: ProcessRowGroupForExportParams): string {
      return `row group: ${params.node.key ?? ""}`;
    },
  },
  rowData: [
    {
      athlete: "Asha Patel",
      country: "United Kingdom",
      sport: "Rowing",
      gold: 2,
    },
    {
      athlete: "Noah Williams",
      country: "United Kingdom",
      sport: "Cycling",
      gold: 1,
    },
    { athlete: "Sofia Rossi", country: "Italy", sport: "Swimming", gold: 3 },
    { athlete: "Marco Bianchi", country: "Italy", sport: "Fencing", gold: 1 },
  ],
};

function onBtExport() {
  gridApi.exportDataAsPdf();
}

gridApi = createGrid(
  document.querySelector<HTMLElement>("#myGrid")!,
  gridOptions,
);

if (typeof window !== "undefined") {
  // Attach external event handlers to window so they can be called from index.html
  (<any>window).onBtExport = onBtExport;
}
```

[Live example: PDF Export - Customising Row Groups](https://www.ag-grid.com/examples/pdf-export-customising-content/pdf-export-customising-row-groups/typescript/)

## Customising Column Headers and Group Header Values

Use `processHeaderCallback` and `processGroupHeaderCallback` to customise exported column headers and column-group headers.

```js
const gridOptions = {
    processHeaderCallback: (params) => `header: ${params.api.getDisplayNameForColumn(params.column, null)}`,
    processGroupHeaderCallback: (params) =>
        `group header: ${params.api.getDisplayNameForColumnGroup(params.columnGroup, null)}`,

    // other grid options ...
}
```

See below the functions on the `PdfExportParams` interface to customise exported column group headers and headers.

| Property | Type | Required | Default | Description |
| --- | --- | --- | --- | --- |
| `processHeaderCallback` | `Function` |  |  |  |
| `processGroupHeaderCallback` | `Function` |  |  |  |

The following example prefixes exported headers with `header: ` and exported group headers with `group header: `.

#### PDF Export - Customising Column Group Headers

```ts
import {
  ClientSideRowModelModule,
  ColumnApiModule,
  GridApi,
  GridOptions,
  ModuleRegistry,
  ProcessGroupHeaderForExportParams,
  ProcessHeaderForExportParams,
  createGrid,
  enableDevValidations,
} from "ag-grid-community";
import { ContextMenuModule, PdfExportModule } from "ag-grid-enterprise";

if (process.env.NODE_ENV !== "production") {
  // Enable extended validations only for development
  enableDevValidations();
}

ModuleRegistry.registerModules([
  ClientSideRowModelModule,
  ColumnApiModule,
  ContextMenuModule,
  PdfExportModule,
]);

interface ResultData {
  athlete: string;
  country: string;
  gold: number;
  silver: number;
}

let gridApi: GridApi<ResultData>;

const gridOptions: GridOptions<ResultData> = {
  columnDefs: [
    {
      headerName: "Athlete Details",
      children: [
        { field: "athlete", minWidth: 180 },
        { field: "country", minWidth: 150 },
      ],
    },
    {
      headerName: "Medal Results",
      children: [{ field: "gold" }, { field: "silver" }],
    },
  ],
  defaultColDef: {
    flex: 1,
    minWidth: 100,
  },
  defaultPdfExportParams: {
    processHeaderCallback(params: ProcessHeaderForExportParams): string {
      return `header: ${params.api.getDisplayNameForColumn(params.column, null)}`;
    },
    processGroupHeaderCallback(
      params: ProcessGroupHeaderForExportParams,
    ): string {
      return `group header: ${params.api.getDisplayNameForColumnGroup(params.columnGroup, null)}`;
    },
  },
  rowData: [
    { athlete: "Asha Patel", country: "United Kingdom", gold: 2, silver: 1 },
    { athlete: "Sofia Rossi", country: "Italy", gold: 3, silver: 2 },
    { athlete: "Mei Chen", country: "Singapore", gold: 1, silver: 2 },
  ],
};

function onBtExport() {
  gridApi.exportDataAsPdf();
}

gridApi = createGrid(
  document.querySelector<HTMLElement>("#myGrid")!,
  gridOptions,
);

if (typeof window !== "undefined") {
  // Attach external event handlers to window so they can be called from index.html
  (<any>window).onBtExport = onBtExport;
}
```

[Live example: PDF Export - Customising Column Group Headers](https://www.ag-grid.com/examples/pdf-export-customising-content/pdf-export-customising-column-group-headers/typescript/)

These callbacks return text. To style the processed result, use `processStyleCallback`; its `value` is the final exported string.