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Theming

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Configure PDF themes, colors, typography, and spacing for Forme.

Takumi Forme
document.pdf
Rendering PDF…

Installation

$ pnpm dlx shadcn@latest add @angular-pdfcn/forme/theme-provider

Usage

Wrap your document content in <pdf-theme-provider> and pass a theme through its theme input. Without a provider, components use the professional theme.

import { Component } from "@angular/core";

import { PdfcnThemeProvider } from "@/components/pdf/theme-provider";
import { professionalTheme } from "@/lib/pdf-themes/professional";

@Component({
  selector: "app-invoice",
  imports: [PdfcnThemeProvider],
  template: `
    <pdf-theme-provider [theme]="theme">
      <!-- Your PDF content -->
    </pdf-theme-provider>
  `,
})
export class Invoice {
  protected readonly theme = professionalTheme;
}

Read the theme

injectPdfcnTheme() returns the nearest provider's theme as a signal. Use it to style your own components with theme tokens.

import { Component, computed } from "@angular/core";

import { injectPdfcnTheme } from "@/components/pdf/theme-provider";
import { FormeText } from "@/lib/pdf-primitives";

@Component({
  selector: "app-brand-line",
  imports: [FormeText],
  template: `<forme-text [style]="style()">Acme Inc.</forme-text>`,
})
export class BrandLine {
  private readonly theme = injectPdfcnTheme();
  protected readonly style = computed(() => ({
    color: this.theme().colors.primary,
  }));
}

Color Tokens

Use hex strings for all color values, such as #1a1a1a. The PDF renderers do not support oklch.

Token Purpose
foreground Primary text color
background Page background
muted Secondary backgrounds
mutedForeground Captions, footnotes
primary Brand/accent color
primaryForeground Text on primary backgrounds
border Table borders, dividers
accent Call-to-action elements
destructive Error states
success Success states
warning Warning states
info Informational states

Primitive Tokens

Primitives define the raw design scales available to themes:

  • Typography Scale: Major Third (1.25) ratio with 12pt base
  • Spacing Scale: 4pt grid system
  • Font Weights: 400–700
  • Line Heights: 1.2–1.6
  • Border Radius: 0–8pt

Custom Themes

Use the PdfcnTheme interface to create custom themes while preserving the complete theme shape.

import { defaultPrimitives } from "@/lib/pdf-themes/primitives";
import type { PdfcnTheme } from "@/types/pdf-themes";

export const oceanTheme: PdfcnTheme = {
  name: "ocean",
  primitives: defaultPrimitives,
  colors: {
    foreground: "#0f172a",
    background: "#ffffff",
    primary: "#0369a1",
    accent: "#0ea5e9",
    muted: "#f1f5f9",
    border: "#e2e8f0",
    mutedForeground: "#64748b",
    primaryForeground: "#ffffff",
    destructive: "#dc2626",
    success: "#16a34a",
    warning: "#d97706",
    info: "#0ea5e9",
  },
  typography: {
    body: { fontFamily: "Helvetica", fontSize: 11, lineHeight: 1.6 },
    heading: {
      fontFamily: "Times-Roman",
      fontWeight: 700,
      lineHeight: 1.25,
      fontSize: { h1: 32, h2: 24, h3: 20, h4: 16, h5: 14, h6: 12 },
    },
  },
  spacing: {
    page: { marginTop: 56, marginRight: 48, marginBottom: 56, marginLeft: 48 },
    sectionGap: 28,
    paragraphGap: 10,
    componentGap: 14,
  },
  page: { size: "A4", orientation: "portrait" },
};

Available Themes

Blueprint
Corporate
Elegant
Executive
Forest
Minimal
Modern
Professional
Vivid