Resize, sharpen, and compress an image to fit email platform size limits in a single pipeline.
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
Extract line items and delivery details from a customer purchase order PDF, then generate a formatted order confirmation PDF ready to send back to the buyer.
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
설치하기 전에 에이전트에게 전달되는 지시 내용을 확인할 수 있습니다.
B2B suppliers and manufacturers use this pipeline to automatically process inbound purchase orders and return a formatted confirmation PDF — acknowledging line items, delivery date, and total — without manual re-entry.
Document Extraction (1 credit per page), Document Generation (1 credits/request)
You need an Iteration Layer API key. Get one at platform.iterationlayer.com during the 7-day trial.
For full integration guidance (SDKs, auth, MCP, error handling), see the Iteration Layer Integration Guide.
# Step 1: Extract purchase order data
EXTRACTION=$(curl -s -X POST https://api.iterationlayer.com/document-extraction/v1/extract \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"files": [
{
"type": "url",
"name": "po-northstar-retail.pdf",
"url": "https://example.com/purchase-orders/po-northstar-retail.pdf"
}
],
"schema": {
"fields": [
{ "name": "customer_name", "type": "TEXT", "description": "Name of the customer or buying company" },
{ "name": "po_number", "type": "TEXT", "description": "Purchase order number" },
{ "name": "po_date", "type": "DATE", "description": "Date the PO was issued" },
{ "name": "requested_delivery_date", "type": "DATE", "description": "Requested delivery date" },
{ "name": "billing_address", "type": "TEXT", "description": "Customer billing address" },
{ "name": "shipping_address", "type": "TEXT", "description": "Delivery address" },
{
"name": "line_items",
"type": "ARRAY",
"description": "Individual line items on the purchase order",
"fields": [
{ "name": "product_sku", "type": "TEXT", "description": "Product SKU or item code" },
{ "name": "product_name", "type": "TEXT", "description": "Product name or description" },
{ "name": "quantity", "type": "INTEGER", "description": "Quantity ordered" },
{ "name": "unit_price", "type": "CURRENCY_AMOUNT", "description": "Price per unit" },
{ "name": "line_total", "type": "CURRENCY_AMOUNT", "description": "Total for this line item" }
]
},
{ "name": "currency", "type": "CURRENCY_CODE", "description": "Order currency" },
{ "name": "po_total", "type": "CURRENCY_AMOUNT", "description": "Total order value" }
]
}
}')
# Step 2: Generate the order confirmation PDF using extracted values
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": "Order Confirmation — PO-2026-0847",
"author": "Meridian Manufacturing Co."
},
"page": {
"size": { "preset": "A4" },
"margins": {
"top_in_pt": 54,
"right_in_pt": 54,
"bottom_in_pt": 54,
"left_in_pt": 54
}
},
"content": [
{ "type": "headline", "level": "h1", "text": "Meridian Manufacturing Co." },
{ "type": "paragraph", "runs": [{ "text": "1840 Industrial Parkway\nColumbus, OH 43201\norders@meridian-mfg.com" }] },
{ "type": "separator" },
{ "type": "headline", "level": "h2", "text": "Order Confirmation" },
{
"type": "paragraph",
"runs": [
{ "text": "Order confirmed for: ", "font_weight": "bold" },
{ "text": "Northstar Retail Group\n" },
{ "text": "PO Number: ", "font_weight": "bold" },
{ "text": "PO-2026-0847\n" },
{ "text": "PO Date: ", "font_weight": "bold" },
{ "text": "2026-03-18\n" },
{ "text": "Estimated Delivery: ", "font_weight": "bold" },
{ "text": "2026-04-15" }
]
},
{
"type": "table",
"headers": [
{ "text": "SKU" },
{ "text": "Product" },
{ "text": "Qty" },
{ "text": "Unit Price" },
{ "text": "Line Total" }
],
"rows": [
[
{ "text": "SFT-GL-200" },
{ "text": "Industrial Safety Gloves" },
{ "text": "200" },
{ "text": "EUR 4.50" },
{ "text": "EUR 900.00" }
],
[
{ "text": "SFT-VS-150" },
{ "text": "High-Vis Safety Vests" },
{ "text": "150" },
{ "text": "EUR 12.00" },
{ "text": "EUR 1,800.00" }
],
[
{ "text": "SFT-BT-080" },
{ "text": "Steel-Toe Work Boots" },
{ "text": "80" },
{ "text": "EUR 67.50" },
{ "text": "EUR 5,400.00" }
]
]
},
{ "type": "separator" },
{
"type": "paragraph",
"runs": [
{ "text": "Order Total: EUR 8,100.00", "font_weight": "bold" }
]
},
{ "type": "paragraph", "runs": [{ "text": "Questions? Contact orders@meridian-mfg.com" }] }
]
}
}'
import { IterationLayer } from "iterationlayer";
const client = new IterationLayer({ apiKey: "YOUR_API_KEY" });
// Step 1: Extract purchase order data
const extraction = await client.extractDocument({
files: [
{
type: "url",
name: "po-northstar-retail.pdf",
url: "https://example.com/purchase-orders/po-northstar-retail.pdf",
},
],
schema: {
fields: [
{
name: "customer_name",
type: "TEXT",
description: "Name of the customer or buying company",
},
{
name: "po_number",
type: "TEXT",
description: "Purchase order number",
},
{
name: "po_date",
type: "DATE",
description: "Date the PO was issued",
},
{
name: "requested_delivery_date",
type: "DATE",
description: "Requested delivery date",
},
{
name: "billing_address",
type: "TEXT",
description: "Customer billing address",
},
{
name: "shipping_address",
type: "TEXT",
description: "Delivery address",
},
{
name: "line_items",
type: "ARRAY",
description: "Individual line items on the purchase order",
fields: [
{
name: "product_sku",
type: "TEXT",
description: "Product SKU or item code",
},
{
name: "product_name",
type: "TEXT",
description: "Product name or description",
},
{
name: "quantity",
type: "INTEGER",
description: "Quantity ordered",
},
{
name: "unit_price",
type: "CURRENCY_AMOUNT",
description: "Price per unit",
},
{
name: "line_total",
type: "CURRENCY_AMOUNT",
description: "Total for this line item",
},
],
},
{
name: "currency",
type: "CURRENCY_CODE",
description: "Order currency",
},
{
name: "po_total",
type: "CURRENCY_AMOUNT",
description: "Total order value",
},
],
},
});
const customerName = String(extraction["customer_name"].value);
const poNumber = String(extraction["po_number"].value);
const poDate = String(extraction["po_date"].value);
const requestedDeliveryDate = String(
extraction["requested_delivery_date"].value,
);
const currency = String(extraction["currency"].value);
const poTotal = String(extraction["po_total"].value);
const lineItems = extraction["line_items"].value as Array<
Record<string, { value: unknown }>
>;
// Step 2: Generate the order confirmation PDF using extracted values
const confirmation = await client.generateDocument({
format: "pdf",
document: {
metadata: {
title: `Order Confirmation — ${poNumber}`,
author: "Meridian Manufacturing Co.",
},
page: {
size: { preset: "A4" },
margins: {
top_in_pt: 54,
right_in_pt: 54,
bottom_in_pt: 54,
left_in_pt: 54,
},
},
content: [
{ type: "headline", level: "h1", text: "Meridian Manufacturing Co." },
{
type: "paragraph",
runs: [
{
text: "1840 Industrial Parkway\nColumbus, OH 43201\norders@meridian-mfg.com",
},
],
},
{ type: "separator" },
{ type: "headline", level: "h2", text: "Order Confirmation" },
{
type: "paragraph",
runs: [
{ text: "Order confirmed for: ", font_weight: "bold" },
{ text: `${customerName}\n` },
{ text: "PO Number: ", font_weight: "bold" },
{ text: `${poNumber}\n` },
{ text: "PO Date: ", font_weight: "bold" },
{ text: `${poDate}\n` },
{ text: "Estimated Delivery: ", font_weight: "bold" },
{ text: requestedDeliveryDate },
],
},
{
type: "table",
headers: [
{ text: "SKU" },
{ text: "Product" },
{ text: "Qty" },
{ text: "Unit Price" },
{ text: "Line Total" },
],
rows: lineItems.map((item) => [
{ text: String(item["product_sku"].value) },
{ text: String(item["product_name"].value) },
{ text: String(item["quantity"].value) },
{ text: String(item["unit_price"].value) },
{ text: String(item["line_total"].value) },
]),
},
{ type: "separator" },
{
type: "paragraph",
runs: [
{ text: `Order Total: ${currency} ${poTotal}`, font_weight: "bold" },
],
},
{
type: "paragraph",
runs: [{ text: "Questions? Contact orders@meridian-mfg.com" }],
},
],
},
});
from iterationlayer import IterationLayer
client = IterationLayer(api_key="YOUR_API_KEY")
# Step 1: Extract purchase order data
extraction = client.extract_document(
files=[
{
"type": "url",
"name": "po-northstar-retail.pdf",
"url": "https://example.com/purchase-orders/po-northstar-retail.pdf",
}
],
schema={
"fields": [
{"name": "customer_name", "type": "TEXT", "description": "Name of the customer or buying company"},
{"name": "po_number", "type": "TEXT", "description": "Purchase order number"},
{"name": "po_date", "type": "DATE", "description": "Date the PO was issued"},
{"name": "requested_delivery_date", "type": "DATE", "description": "Requested delivery date"},
{"name": "billing_address", "type": "TEXT", "description": "Customer billing address"},
{"name": "shipping_address", "type": "TEXT", "description": "Delivery address"},
{
"name": "line_items",
"type": "ARRAY",
"description": "Individual line items on the purchase order",
"fields": [
{"name": "product_sku", "type": "TEXT", "description": "Product SKU or item code"},
{"name": "product_name", "type": "TEXT", "description": "Product name or description"},
{"name": "quantity", "type": "INTEGER", "description": "Quantity ordered"},
{"name": "unit_price", "type": "CURRENCY_AMOUNT", "description": "Price per unit"},
{"name": "line_total", "type": "CURRENCY_AMOUNT", "description": "Total for this line item"},
],
},
{"name": "currency", "type": "CURRENCY_CODE", "description": "Order currency"},
{"name": "po_total", "type": "CURRENCY_AMOUNT", "description": "Total order value"},
]
},
)
customer_name = extraction["customer_name"]["value"]
po_number = extraction["po_number"]["value"]
po_date = extraction["po_date"]["value"]
requested_delivery_date = extraction["requested_delivery_date"]["value"]
currency = extraction["currency"]["value"]
po_total = extraction["po_total"]["value"]
line_items = extraction["line_items"]["value"]
# Step 2: Generate the order confirmation PDF using extracted values
confirmation = client.generate_document(
format="pdf",
document={
"metadata": {
"title": f"Order Confirmation — {po_number}",
"author": "Meridian Manufacturing Co.",
},
"page": {
"size": {"preset": "A4"},
"margins": {
"top_in_pt": 54,
"right_in_pt": 54,
"bottom_in_pt": 54,
"left_in_pt": 54,
},
},
"content": [
{"type": "headline", "level": "h1", "text": "Meridian Manufacturing Co."},
{"type": "paragraph", "runs": [{"text": "1840 Industrial Parkway\nColumbus, OH 43201\norders@meridian-mfg.com"}]},
{"type": "separator"},
{"type": "headline", "level": "h2", "text": "Order Confirmation"},
{
"type": "paragraph",
"runs": [
{"text": "Order confirmed for: ", "font_weight": "bold"},
{"text": f"{customer_name}\n"},
{"text": "PO Number: ", "font_weight": "bold"},
{"text": f"{po_number}\n"},
{"text": "PO Date: ", "font_weight": "bold"},
{"text": f"{po_date}\n"},
{"text": "Estimated Delivery: ", "font_weight": "bold"},
{"text": requested_delivery_date},
],
},
{
"type": "table",
"headers": [
{"text": "SKU"},
{"text": "Product"},
{"text": "Qty"},
{"text": "Unit Price"},
{"text": "Line Total"},
],
"rows": [
[
{"text": item["product_sku"]["value"]},
{"text": item["product_name"]["value"]},
{"text": str(item["quantity"]["value"])},
{"text": str(item["unit_price"]["value"])},
{"text": str(item["line_total"]["value"])},
]
for item in line_items
],
},
{"type": "separator"},
{
"type": "paragraph",
"runs": [{"text": f"Order Total: {currency} {po_total}", "font_weight": "bold"}],
},
{"type": "paragraph", "runs": [{"text": "Questions? Contact orders@meridian-mfg.com"}]},
],
},
)
package main
import il "github.com/iterationlayer/sdk-go"
func main() {
client := il.NewClient("YOUR_API_KEY")
result, err := client.ExtractDocument(il.ExtractDocumentRequest{
Files: []il.FileInput{
il.FileInput{
Type: "url",
Name: "po-northstar-retail.pdf",
Url: "https://example.com/purchase-orders/po-northstar-retail.pdf",
},
},
Schema: il.ExtractionSchema{
Fields: []any{
il.TextFieldConfig{
Name: "customer_name",
Type: "TEXT",
Description: "Name of the customer or buying company",
},
il.TextFieldConfig{
Name: "po_number",
Type: "TEXT",
Description: "Purchase order number",
},
il.DateFieldConfig{
Name: "po_date",
Type: "DATE",
Description: "Date the PO was issued",
},
il.DateFieldConfig{
Name: "requested_delivery_date",
Type: "DATE",
Description: "Requested delivery date",
},
il.TextFieldConfig{
Name: "billing_address",
Type: "TEXT",
Description: "Customer billing address",
},
il.TextFieldConfig{
Name: "shipping_address",
Type: "TEXT",
Description: "Delivery address",
},
il.ArrayFieldConfig{
Name: "line_items",
Type: "ARRAY",
Description: "Individual line items on the purchase order",
Fields: []any{
il.TextFieldConfig{
Name: "product_sku",
Type: "TEXT",
Description: "Product SKU or item code",
},
il.TextFieldConfig{
Name: "product_name",
Type: "TEXT",
Description: "Product name or description",
},
il.IntegerFieldConfig{
Name: "quantity",
Type: "INTEGER",
Description: "Quantity ordered",
},
il.CurrencyAmountFieldConfig{
Name: "unit_price",
Type: "CURRENCY_AMOUNT",
Description: "Price per unit",
},
il.CurrencyAmountFieldConfig{
Name: "line_total",
Type: "CURRENCY_AMOUNT",
Description: "Total for this line item",
},
},
},
il.CurrencyCodeFieldConfig{
Name: "currency",
Type: "CURRENCY_CODE",
Description: "Order currency",
},
il.CurrencyAmountFieldConfig{
Name: "po_total",
Type: "CURRENCY_AMOUNT",
Description: "Total order value",
},
},
},
})
if err != nil {
panic(err)
}
_ = result
}
{
"name": "Extract a Purchase Order and Generate a Confirmation",
"nodes": [
{
"parameters": {
"content": "## Extract a Purchase Order and Generate a Confirmation\n\nB2B suppliers and manufacturers use this pipeline to automatically process inbound purchase orders and return a formatted confirmation PDF \u2014 acknowledging line items, delivery date, and total \u2014 without manual re-entry.\n\n**Note:** This workflow uses the Iteration Layer community node (`n8n-nodes-iterationlayer`). Install it via Settings > Community Nodes on self-hosted n8n, or add it directly on n8n Cloud with Verified Community Nodes enabled.",
"height": 280,
"width": 500,
"color": 2
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
200,
40
],
"id": "acc63bdf-6459-43ef-8513-a8937f1b0a1d",
"name": "Overview"
},
{
"parameters": {
"content": "### Step 1: Extract Purchase Order\nResource: **Document Extraction**\n\nConfigure the Document Extraction parameters below, then connect your credentials.",
"height": 160,
"width": 300,
"color": 6
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
475,
100
],
"id": "b2954aa1-a811-433a-946f-3acefda1515b",
"name": "Step 1 Note"
},
{
"parameters": {
"content": "### Step 2: Generate Order Confirmation\nResource: **Document Generation**\n\nConfigure the Document Generation parameters below, then connect your credentials.",
"height": 160,
"width": 300,
"color": 6
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
725,
100
],
"id": "8f523f93-f85d-47d8-a62e-395d8096e36d",
"name": "Step 2 Note"
},
{
"parameters": {},
"type": "n8n-nodes-base.manualTrigger",
"typeVersion": 1,
"position": [
250,
300
],
"id": "a0b1c2d3-e4f5-6789-0abc-def012345678",
"name": "Manual Trigger"
},
{
"parameters": {
"resource": "documentExtraction",
"schemaInputMode": "rawJson",
"schemaJson": "[\n {\n \"name\": \"customer_name\",\n \"type\": \"TEXT\",\n \"description\": \"Name of the customer or buying company\"\n },\n {\n \"name\": \"po_number\",\n \"type\": \"TEXT\",\n \"description\": \"Purchase order number\"\n },\n {\n \"name\": \"po_date\",\n \"type\": \"DATE\",\n \"description\": \"Date the PO was issued\"\n },\n {\n \"name\": \"requested_delivery_date\",\n \"type\": \"DATE\",\n \"description\": \"Requested delivery date\"\n },\n {\n \"name\": \"billing_address\",\n \"type\": \"TEXT\",\n \"description\": \"Customer billing address\"\n },\n {\n \"name\": \"shipping_address\",\n \"type\": \"TEXT\",\n \"description\": \"Delivery address\"\n },\n {\n \"name\": \"line_items\",\n \"type\": \"ARRAY\",\n \"description\": \"Individual line items on the purchase order\",\n \"children\": [\n {\n \"name\": \"product_sku\",\n \"type\": \"TEXT\",\n \"description\": \"Product SKU or item code\"\n },\n {\n \"name\": \"product_name\",\n \"type\": \"TEXT\",\n \"description\": \"Product name or description\"\n },\n {\n \"name\": \"quantity\",\n \"type\": \"INTEGER\",\n \"description\": \"Quantity ordered\"\n },\n {\n \"name\": \"unit_price\",\n \"type\": \"CURRENCY_AMOUNT\",\n \"description\": \"Price per unit\"\n },\n {\n \"name\": \"line_total\",\n \"type\": \"CURRENCY_AMOUNT\",\n \"description\": \"Total for this line item\"\n }\n ]\n },\n {\n \"name\": \"currency\",\n \"type\": \"CURRENCY_CODE\",\n \"description\": \"Order currency\"\n },\n {\n \"name\": \"po_total\",\n \"type\": \"CURRENCY_AMOUNT\",\n \"description\": \"Total order value\"\n }\n]",
"files": {
"fileValues": [
{
"inputMode": "url",
"fileUrl": "https://example.com/purchase-orders/po-northstar-retail.pdf"
}
]
}
},
"type": "n8n-nodes-iterationlayer.iterationLayer",
"typeVersion": 1,
"position": [
500,
300
],
"id": "b1c2d3e4-f5a6-7890-1bcd-ef0123456789",
"name": "Extract Purchase Order",
"credentials": {
"iterationLayerApi": {
"id": "1",
"name": "Iteration Layer API"
}
}
},
{
"parameters": {
"resource": "documentGeneration",
"format": "pdf",
"documentJson": "{\n \"metadata\": {\n \"title\": \"Order Confirmation \u2014 {{ $json.po_number }}\",\n \"author\": \"Meridian Manufacturing Co.\"\n },\n \"page\": {\n \"size\": { \"preset\": \"A4\" },\n \"margins\": {\n \"top_in_pt\": 54,\n \"right_in_pt\": 54,\n \"bottom_in_pt\": 54,\n \"left_in_pt\": 54\n }\n },\n \"content\": [\n { \"type\": \"headline\", \"level\": \"h1\", \"text\": \"Meridian Manufacturing Co.\" },\n { \"type\": \"paragraph\", \"runs\": [{ \"text\": \"1840 Industrial Parkway\\nColumbus, OH 43201\\norders@meridian-mfg.com\" }] },\n { \"type\": \"separator\" },\n { \"type\": \"headline\", \"level\": \"h2\", \"text\": \"Order Confirmation\" },\n {\n \"type\": \"paragraph\",\n \"runs\": [\n { \"text\": \"Order confirmed for: \", \"font_weight\": \"bold\" },\n { \"text\": \"{{ $json.customer_name }}\\n\" },\n { \"text\": \"PO Number: \", \"font_weight\": \"bold\" },\n { \"text\": \"{{ $json.po_number }}\\n\" },\n { \"text\": \"PO Date: \", \"font_weight\": \"bold\" },\n { \"text\": \"{{ $json.po_date }}\\n\" },\n { \"text\": \"Estimated Delivery: \", \"font_weight\": \"bold\" },\n { \"text\": \"{{ $json.requested_delivery_date }}\" }\n ]\n },\n {\n \"type\": \"table\",\n \"headers\": [\n { \"text\": \"SKU\" },\n { \"text\": \"Product\" },\n { \"text\": \"Qty\" },\n { \"text\": \"Unit Price\" },\n { \"text\": \"Line Total\" }\n ],\n \"rows\": \"{{ $json.line_items }}\"\n },\n { \"type\": \"separator\" },\n {\n \"type\": \"paragraph\",\n \"runs\": [{ \"text\": \"Order Total: {{ $json.currency }} {{ $json.po_total }}\", \"font_weight\": \"bold\" }]\n },\n { \"type\": \"paragraph\", \"runs\": [{ \"text\": \"Questions? Contact orders@meridian-mfg.com\" }] }\n ]\n}"
},
"type": "n8n-nodes-iterationlayer.iterationLayer",
"typeVersion": 1,
"position": [
750,
300
],
"id": "c2d3e4f5-a6b7-8901-2cde-f01234567890",
"name": "Generate Order Confirmation",
"credentials": {
"iterationLayerApi": {
"id": "1",
"name": "Iteration Layer API"
}
}
}
],
"connections": {
"Manual Trigger": {
"main": [
[
{
"node": "Extract Purchase Order",
"type": "main",
"index": 0
}
]
]
},
"Extract Purchase Order": {
"main": [
[
{
"node": "Generate Order Confirmation",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1"
}
}
Extract purchase order data from the file at [file URL], then generate an order confirmation PDF. Use the extract_document tool with these fields:
- customer_name (TEXT): Name of the customer or buying company
- po_number (TEXT): Purchase order number
- po_date (DATE): Date the PO was issued
- requested_delivery_date (DATE): Requested delivery date
- billing_address (TEXT): Customer billing address
- shipping_address (TEXT): Delivery address
- line_items (ARRAY): Each with product_sku (TEXT), product_name (TEXT), quantity (INTEGER), unit_price (CURRENCY_AMOUNT), line_total (CURRENCY_AMOUNT)
- currency (CURRENCY_CODE): Order currency
- po_total (CURRENCY_AMOUNT): Total order value
Then use the generate_document tool to create a PDF order confirmation from the extracted values.
{
"success": true,
"data": {
"buffer": "JVBERi0xLjQ...",
"mime_type": "application/pdf"
}
}
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Resize, sharpen, and compress an image to fit email platform size limits in a single pipeline.
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
Compress an image to fit within a specific file size in bytes using quality-first compression.
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
Convert a contract PDF to clean markdown for clause extraction or LLM analysis.
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
Convert external documents — specs, contracts, reports — to markdown for knowledge base ingestion.
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
Convert a document to clean markdown suitable for chunking and embedding in a RAG pipeline.
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
Convert an image between PNG, JPEG, and WebP formats with quality control for web optimization.
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.