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Generate PDF Certificates

Generate professional achievement certificates with recipient name, course details, date, and a QR code for verification.

Who this is for

Online learning platforms and corporate training departments use this recipe to generate completion certificates on demand. Define the recipient name, course title, completion date, and a QR code linking to a verification page — producing a polished landscape PDF ready for download or email delivery. 

curl -X POST https://api.iterationlayer.com/document-generation/v1/generate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "format": "pdf",
    "document": {
      "metadata": {
        "title": "Certificate of Completion - Advanced Data Engineering",
        "author": "Horizon Academy"
      },
      "page": {
        "size": { "width_in_pt": 842, "height_in_pt": 595 },
        "margins": { "top_in_pt": 60, "right_in_pt": 72, "bottom_in_pt": 60, "left_in_pt": 72 }
      },
      "styles": {
        "text": { "font_family": "Helvetica", "font_size_in_pt": 11.0, "line_height": 1.5, "color": "#333333" },
        "headline": { "font_family": "Helvetica", "font_size_in_pt": 24.0, "color": "#111111", "spacing_before_in_pt": 12.0, "spacing_after_in_pt": 6.0, "is_bold": true },
        "link": { "color": "#0066CC", "is_underlined": true },
        "list": { "text_style": { "font_family": "Helvetica", "font_size_in_pt": 11.0, "line_height": 1.5, "color": "#333333" }, "marker_color": "#333333", "marker_gap_in_pt": 8.0 },
        "table": { "header": { "background_color": "#333333", "text_color": "#FFFFFF", "font_size_in_pt": 11.0, "is_bold": true }, "body": { "background_color": "#FFFFFF", "text_color": "#333333", "font_size_in_pt": 11.0 }, "border": { "outer": { "top": { "color": "#CCCCCC", "width_in_pt": 1.0 }, "right": { "color": "#CCCCCC", "width_in_pt": 1.0 }, "bottom": { "color": "#CCCCCC", "width_in_pt": 1.0 }, "left": { "color": "#CCCCCC", "width_in_pt": 1.0 } }, "inner": { "horizontal": { "color": "#EEEEEE", "width_in_pt": 0.5 }, "vertical": { "color": "#EEEEEE", "width_in_pt": 0.5 } } } },
        "grid": { "background_color": "#FFFFFF", "border_color": "#CCCCCC", "border_width_in_pt": 0.0, "gap_in_pt": 12.0 },
        "separator": { "color": "#CCCCCC", "thickness_in_pt": 1.0, "spacing_before_in_pt": 12.0, "spacing_after_in_pt": 12.0 },
        "image": { "border_color": "#000000", "border_width_in_pt": 0.0 }
      },
      "content": [
        { "type": "headline", "level": "h3", "text": "HORIZON ACADEMY" },
        { "type": "separator" },
        { "type": "headline", "level": "h1", "text": "Certificate of Completion" },
        { "type": "paragraph", "runs": [{ "text": "This certificate is proudly presented to" }] },
        { "type": "headline", "level": "h1", "text": "James Whitfield" },
        { "type": "paragraph", "runs": [{ "text": "for successfully completing the course" }] },
        { "type": "headline", "level": "h2", "text": "Advanced Data Engineering with Apache Spark" },
        { "type": "paragraph", "markdown": "Completed on **March 1, 2026** with a score of **94%** after 42 hours of coursework covering distributed data processing, pipeline orchestration, and performance optimization." },
        { "type": "separator" },
        { "type": "grid", "columns": [
          { "column_span": 4, "blocks": [
            { "type": "paragraph", "runs": [{ "text": "Certificate ID", "is_bold": true }] },
            { "type": "paragraph", "runs": [{ "text": "CERT-2026-ADE-07284" }] }
          ]},
          { "column_span": 4, "blocks": [
            { "type": "paragraph", "runs": [{ "text": "Issued By", "is_bold": true }] },
            { "type": "paragraph", "runs": [{ "text": "Dr. Elena Marchetti, Program Director" }] }
          ]},
          { "column_span": 4, "blocks": [
            { "type": "qr-code", "value": "https://verify.horizonacademy.com/cert/2026-ADE-07284", "width_in_pt": 80, "height_in_pt": 80, "fg_hex_color": "#000000", "bg_hex_color": "#FFFFFF" }
          ]}
        ]}
      ]
    }
  }'
import { IterationLayer } from "iterationlayer";
const client = new IterationLayer({ apiKey: "YOUR_API_KEY" });

const result = await client.generateDocument({
  format: "pdf",
  document: {
    metadata: {
      title: "Certificate of Completion - Advanced Data Engineering",
      author: "Horizon Academy",
    },
    page: {
      size: { width_in_pt: 842, height_in_pt: 595 },
      margins: { top_in_pt: 60, right_in_pt: 72, bottom_in_pt: 60, left_in_pt: 72 },
    },
    styles: {
      text: { font_family: "Helvetica", font_size_in_pt: 11.0, line_height: 1.5, color: "#333333" },
      headline: { font_family: "Helvetica", font_size_in_pt: 24.0, color: "#111111", spacing_before_in_pt: 12.0, spacing_after_in_pt: 6.0, is_bold: true },
      link: { color: "#0066CC", is_underlined: true },
      list: { text_style: { font_family: "Helvetica", font_size_in_pt: 11.0, line_height: 1.5, color: "#333333" }, marker_color: "#333333", marker_gap_in_pt: 8.0 },
      table: { header: { background_color: "#333333", text_color: "#FFFFFF", font_size_in_pt: 11.0, is_bold: true }, body: { background_color: "#FFFFFF", text_color: "#333333", font_size_in_pt: 11.0 }, border: { outer: { top: { color: "#CCCCCC", width_in_pt: 1.0 }, right: { color: "#CCCCCC", width_in_pt: 1.0 }, bottom: { color: "#CCCCCC", width_in_pt: 1.0 }, left: { color: "#CCCCCC", width_in_pt: 1.0 } }, inner: { horizontal: { color: "#EEEEEE", width_in_pt: 0.5 }, vertical: { color: "#EEEEEE", width_in_pt: 0.5 } } } },
      grid: { background_color: "#FFFFFF", border_color: "#CCCCCC", border_width_in_pt: 0.0, gap_in_pt: 12.0 },
      separator: { color: "#CCCCCC", thickness_in_pt: 1.0, spacing_before_in_pt: 12.0, spacing_after_in_pt: 12.0 },
      image: { border_color: "#000000", border_width_in_pt: 0.0 },
    },
    content: [
      { type: "headline", level: "h3", text: "HORIZON ACADEMY" },
      { type: "separator" },
      { type: "headline", level: "h1", text: "Certificate of Completion" },
      { type: "paragraph", runs: [{ text: "This certificate is proudly presented to" }] },
      { type: "headline", level: "h1", text: "James Whitfield" },
      { type: "paragraph", runs: [{ text: "for successfully completing the course" }] },
      { type: "headline", level: "h2", text: "Advanced Data Engineering with Apache Spark" },
      { type: "paragraph", markdown: "Completed on **March 1, 2026** with a score of **94%** after 42 hours of coursework covering distributed data processing, pipeline orchestration, and performance optimization." },
      { type: "separator" },
      { type: "grid", columns: [
        { column_span: 4, blocks: [
          { type: "paragraph", runs: [{ text: "Certificate ID", is_bold: true }] },
          { type: "paragraph", runs: [{ text: "CERT-2026-ADE-07284" }] },
        ]},
        { column_span: 4, blocks: [
          { type: "paragraph", runs: [{ text: "Issued By", is_bold: true }] },
          { type: "paragraph", runs: [{ text: "Dr. Elena Marchetti, Program Director" }] },
        ]},
        { column_span: 4, blocks: [
          { type: "qr-code", value: "https://verify.horizonacademy.com/cert/2026-ADE-07284", width_in_pt: 80, height_in_pt: 80, fg_hex_color: "#000000", bg_hex_color: "#FFFFFF" },
        ]},
      ]},
    ],
  },
});

console.log(result);
from iterationlayer import IterationLayer
client = IterationLayer(api_key="YOUR_API_KEY")

result = client.generate_document(
    format="pdf",
    document={
        "metadata": {
            "title": "Certificate of Completion - Advanced Data Engineering",
            "author": "Horizon Academy",
        },
        "page": {
            "size": {"width_in_pt": 842, "height_in_pt": 595},
            "margins": {"top_in_pt": 60, "right_in_pt": 72, "bottom_in_pt": 60, "left_in_pt": 72},
        },
        "styles": {
            "text": {"font_family": "Helvetica", "font_size_in_pt": 11.0, "line_height": 1.5, "color": "#333333"},
            "headline": {"font_family": "Helvetica", "font_size_in_pt": 24.0, "color": "#111111", "spacing_before_in_pt": 12.0, "spacing_after_in_pt": 6.0, "is_bold": True},
            "link": {"color": "#0066CC", "is_underlined": True},
            "list": {"text_style": {"font_family": "Helvetica", "font_size_in_pt": 11.0, "line_height": 1.5, "color": "#333333"}, "marker_color": "#333333", "marker_gap_in_pt": 8.0},
            "table": {"header": {"background_color": "#333333", "text_color": "#FFFFFF", "font_size_in_pt": 11.0, "is_bold": True}, "body": {"background_color": "#FFFFFF", "text_color": "#333333", "font_size_in_pt": 11.0}, "border": {"outer": {"top": {"color": "#CCCCCC", "width_in_pt": 1.0}, "right": {"color": "#CCCCCC", "width_in_pt": 1.0}, "bottom": {"color": "#CCCCCC", "width_in_pt": 1.0}, "left": {"color": "#CCCCCC", "width_in_pt": 1.0}}, "inner": {"horizontal": {"color": "#EEEEEE", "width_in_pt": 0.5}, "vertical": {"color": "#EEEEEE", "width_in_pt": 0.5}}}},
            "grid": {"background_color": "#FFFFFF", "border_color": "#CCCCCC", "border_width_in_pt": 0.0, "gap_in_pt": 12.0},
            "separator": {"color": "#CCCCCC", "thickness_in_pt": 1.0, "spacing_before_in_pt": 12.0, "spacing_after_in_pt": 12.0},
            "image": {"border_color": "#000000", "border_width_in_pt": 0.0},
        },
        "content": [
            {"type": "headline", "level": "h3", "text": "HORIZON ACADEMY"},
            {"type": "separator"},
            {"type": "headline", "level": "h1", "text": "Certificate of Completion"},
            {"type": "paragraph", "runs": [{"text": "This certificate is proudly presented to"}]},
            {"type": "headline", "level": "h1", "text": "James Whitfield"},
            {"type": "paragraph", "runs": [{"text": "for successfully completing the course"}]},
            {"type": "headline", "level": "h2", "text": "Advanced Data Engineering with Apache Spark"},
            {"type": "paragraph", "markdown": "Completed on **March 1, 2026** with a score of **94%** after 42 hours of coursework covering distributed data processing, pipeline orchestration, and performance optimization."},
            {"type": "separator"},
            {"type": "grid", "columns": [
                {"column_span": 4, "blocks": [
                    {"type": "paragraph", "runs": [{"text": "Certificate ID", "is_bold": True}]},
                    {"type": "paragraph", "runs": [{"text": "CERT-2026-ADE-07284"}]},
                ]},
                {"column_span": 4, "blocks": [
                    {"type": "paragraph", "runs": [{"text": "Issued By", "is_bold": True}]},
                    {"type": "paragraph", "runs": [{"text": "Dr. Elena Marchetti, Program Director"}]},
                ]},
                {"column_span": 4, "blocks": [
                    {"type": "qr-code", "value": "https://verify.horizonacademy.com/cert/2026-ADE-07284", "width_in_pt": 80, "height_in_pt": 80, "fg_hex_color": "#000000", "bg_hex_color": "#FFFFFF"},
                ]},
            ]},
        ],
    },
)

print(result)
package main

import (
    "fmt"
    il "github.com/iterationlayer/sdk-go"
)

func main() {
    client := il.NewClient("YOUR_API_KEY")

    result, err := client.GenerateDocument(il.GenerateDocumentRequest{
        Format: "pdf",
        Document: il.DocumentDefinition{
            Metadata: il.DocumentMetadata{
                Title:  "Certificate of Completion - Advanced Data Engineering",
                Author: "Horizon Academy",
            },
            Page: il.PageConfig{
                Size:    il.PageSize{WidthInPt: 842, HeightInPt: 595},
                Margins: il.Margins{TopInPt: 60, RightInPt: 72, BottomInPt: 60, LeftInPt: 72},
            },
            Content: []il.ContentBlock{
                il.NewHeadlineBlock("h3", "HORIZON ACADEMY"),
                il.NewSeparatorBlock(),
                il.NewHeadlineBlock("h1", "Certificate of Completion"),
                il.ParagraphBlock{Type: "paragraph", Markdown: "This certificate is proudly presented to"},
                il.NewHeadlineBlock("h1", "James Whitfield"),
                il.ParagraphBlock{Type: "paragraph", Markdown: "for successfully completing the course"},
                il.NewHeadlineBlock("h2", "Advanced Data Engineering with Apache Spark"),
                il.ParagraphBlock{Type: "paragraph", Markdown: "Completed on **March 1, 2026** with a score of **94%** after 42 hours of coursework."},
                il.NewSeparatorBlock(),
                il.NewDocumentQrCodeBlock("https://verify.horizonacademy.com/cert/2026-ADE-07284", 80, 80),
            },
        },
    })
    if err != nil {
        panic(err)
    }

    fmt.Println(result)
}

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