QR Code PDF component — renders a QR code at a given position.

Usage via Builder

%{type: :qr, props: %{
  data: "https://example.com",
  style: %{
    position: {50, 700},
    size: 120,
    ec_level: :h,
    logo: "https://example.com/icon.png",
    logo_size: 30,
    label: "Scan me"
  }
}}

Style options

Core

• :data — the string to encode (required)
• :size — QR code size in points, square (default 100)
• :ec_level — error correction: :l, :m (default), :q, :h
• :color — module (dark) color (default {0, 0, 0})
• :background — light module color (default {1, 1, 1})
• :quiet_zone — number of quiet zone modules (default 2)

Border & padding

• :border — border width (default 0)
• :border_color — border stroke color (default {0.8, 0.8, 0.8})
• :border_radius — corner radius (default 0)
• :border_fill — fill color for border area / card background (default nil)
• :padding — extra padding between border and QR (default 0)

Logo / icon overlay (center of QR)

• :logo — image path, URL, or {:binary, data} (default nil)
• :logo_size — logo width & height in points (default 20% of :size)
• :logo_background — background behind logo (default :background)
• :logo_padding — padding around logo image (default 3)
• :logo_border_radius — rounded clip for logo area (default 4)

Label

• :label — text rendered below the QR code (default nil)
• :label_font — font name (default "Helvetica")
• :label_font_size — font size (default 8)
• :label_color — text color (default same as :color)
• :label_bold — bold label (default false)