Angular PDF export and print

exportPdf() from the kit’s /export entry creates a PDF of the resolved table values. It shares CSV’s scope and async lifecycle. It does not capture a screenshot of the Angular component, so a custom cell needs an exportValue when its displayed template is not a portable value.

import { Component } from "@angular/core";
import type { ColumnDef } from "@adapttable/angular";
import { AdaptDataTable } from "@adapttable/angular-unstyled";
import { exportPdf } from "@adapttable/angular-unstyled/export";
import { print } from "@adapttable/angular-unstyled/print";

interface Line {
  id: string;
  description: string;
  quantity: number;
}

@Component({
  selector: "app-printable-lines",
  imports: [AdaptDataTable],
  template: `
    <adapt-data-table
      tableLabel="Order lines"
      [data]="rows"
      [columns]="columns"
      [rowKey]="rowKey"
      [features]="features"
    />
  `,
})
export class PrintableLines {
  readonly rows: readonly Line[] = [
    { id: "l1", description: "Notebook", quantity: 3 },
  ];
  readonly columns: readonly ColumnDef<Line>[] = [
    { key: "description", header: "Description" },
    { key: "quantity", header: "Quantity" },
  ];
  readonly rowKey = (row: Line) => row.id;
  readonly features = [
    exportPdf<Line>({ filename: "order-lines.pdf", scope: "page" }),
    print(() => window.print(), true),
  ];
}

Use the matching @adapttable/ng-zorro imports for NG-ZORRO controls. See getting started for installation and first-release status. print(callback, true) adds a separate print button; the host callback runs on activation and owns the browser print flow. It does not start automatically during SSR.

Layout and fonts

The default PDF uses A4 landscape and Helvetica. Text outside the default font’s WinAnsi coverage can become ?. For international text, supply a font that covers your content through the neutral pdfWriter helper and use exportCsv({ writer }) as the general writer entry:

import { exportCsv } from "@adapttable/angular-unstyled/export";
import { pdfWriter } from "@adapttable/core/pdf";

export async function createArabicPdfFeature() {
  const response = await fetch("/fonts/NotoSansArabic-Regular.ttf");
  if (!response.ok) throw new Error("The PDF font could not be loaded");
  const font = await response.arrayBuffer();
  return exportCsv({
    filename: "report.pdf",
    writer: pdfWriter({
      font,
      direction: "rtl",
      title: "تقرير",
      pageSize: "a4-landscape",
      pageBreak: "group",
    }),
  });
}

Load and cache the feature before mounting the table that uses it; show a loading state and handle the promise rejection in your host. Font bytes must have TrueType outlines. CFF-flavored OpenType is rejected. The writer subsets the font, handles its supported RTL/Arabic shaping path and preserves logical text in ActualText. A language still needs a suitable font; a locale label alone cannot supply missing glyphs.

pageBreak: "auto" fits rows to pages and avoids leaving a group header alone at the bottom. "group" also starts a new page before later top-level groups. The writer uses column widths and hierarchy metadata. Long text may be fitted to its column rather than reproducing an arbitrarily tall custom template. exportPdf() intentionally fixes the default writer; writer-specific options belong to pdfWriter().

Downloads, errors and print limits

All-row server exports need onExportAll, request or explicitly capped fetchAll. Propagate rejected requests and honor cancellation; the Angular export controller owns busy, error and retry presentation and releases its run on destroy. onAfterExport means browser handoff, not a confirmed file save.

Browser printing only sees content available to the print flow. A virtualized or server-paged table is not automatically a complete report. Build a full report with a declared export scope when that is the intent. Keep print/export controls available to keyboard and mobile users, and use localized labels and the correct direction in the host.

See Exporting, Virtualization, i18n and RTL and the PDF writer options.