Workflow: construct a n8n workflow for Code Editimage Update Webhook
Integrations: code, editImage, httpRequest, manualTrigger, merge, set, stickyNote

{"meta": {"instanceId": "ecec1cfe760b632dcb0132ecf2ac7c047c6f290f3f4a5640e2e2466f0269ccaf"}, "nodes": [{"id": "a30e02b0-b807-4a4c-b2a6-19bacf5f2f8f", "name": "When clicking \"Test workflow\"", "type": "n8n-nodes-base.manualTrigger", "position": [800, 180], "parameters": {}, "typeVersion": 1}, {"id": "558afdb5-7311-48f1-9464-01b6933eaffe", "name": "Get Meta BG", "type": "n8n-nodes-base.editImage", "position": [1300, 60], "parameters": {"operation": "information"}, "typeVersion": 1}, {"id": "66bf1414-725b-40e3-be08-76f02a5d130f", "name": "Nest Top Meta", "type": "n8n-nodes-base.set", "position": [1480, 320], "parameters": {"options": {"includeBinary": true}, "assignments": {"assignments": [{"id": "2fb3fd91-c13d-45ce-a7ec-612319a008fc", "name": "metaTop", "type": "object", "value": "={{ $json }}"}]}}, "typeVersion": 3.3}, {"id": "29e77ce2-15a0-47a8-8b1c-8f457ae435c6", "name": "Nest Bg Meta", "type": "n8n-nodes-base.set", "position": [1480, 60], "parameters": {"options": {"includeBinary": true}, "assignments": {"assignments": [{"id": "2fb3fd91-c13d-45ce-a7ec-612319a008fc", "name": "metaBg", "type": "object", "value": "={{ $json }}"}]}}, "typeVersion": 3.3}, {"id": "dcdf4737-f881-4414-8fdb-1ce334e60093", "name": "Calculate Center", "type": "n8n-nodes-base.code", "position": [2280, 180], "parameters": {"mode": "runOnceForEachItem", "jsCode": "\n\n  const centerX = ($input.item.json.metaBg.size.width + $input.item.json.metaTop.size.width) / 2;\n  const centerY = ($input.item.json.metaBg.size.height + $input.item.json.metaTop.size.height) / 2;\n\n  $input.item.json.center = { x: centerX, y: centerY };\n\nreturn $input.item"}, "typeVersion": 2}, {"id": "7b146616-cbc7-4e21-a899-46fdc8e5c914", "name": "Get Logo for the Watermark", "type": "n8n-nodes-base.httpRequest", "position": [1100, 320], "parameters": {"url": "https://cloud.let-the-work-flow.com/workflow-data/logo-shadow.png", "options": {}}, "typeVersion": 4.2}, {"id": "7167d1b8-f0c4-4068-b5c8-bb23d5a5a589", "name": "Get the Image for Background", "type": "n8n-nodes-base.httpRequest", "position": [1100, 60], "parameters": {"url": "https://cloud.let-the-work-flow.com/workflow-data/robot-1.png", "options": {}}, "typeVersion": 4.2}, {"id": "df6b4e01-76aa-42dd-bf1f-8eb259cd4079", "name": "Wait for both Images and merge Binary in one Item", "type": "n8n-nodes-base.merge", "position": [1980, 180], "parameters": {"mode": "combine", "options": {}, "combinationMode": "mergeByPosition"}, "typeVersion": 2.1}, {"id": "d5161149-275c-4e2d-9d55-7f1c18716933", "name": "Rename Image Binary Top Image", "type": "n8n-nodes-base.code", "position": [1660, 320], "parameters": {"mode": "runOnceForEachItem", "jsCode": "$input.item.binary.top = $input.item.binary.data;\ndelete $input.item.binary.data;\nreturn $input.item;"}, "typeVersion": 2}, {"id": "90b0e990-d330-4875-b492-28d52019784d", "name": "Rename Image Binary Background Image", "type": "n8n-nodes-base.code", "position": [1660, 60], "parameters": {"mode": "runOnceForEachItem", "jsCode": "$input.item.binary.bg = $input.item.binary.data;\ndelete $input.item.binary.data;\nreturn $input.item;"}, "typeVersion": 2}, {"id": "a2b3eaa3-61bb-4e91-a225-b6a9b5dd725c", "name": "Get Meta Top", "type": "n8n-nodes-base.editImage", "position": [1300, 320], "parameters": {"operation": "information"}, "typeVersion": 1}, {"id": "46b4e344-8ea6-4d87-9dc3-c3d80f17a9d5", "name": "Let \"top\" overlay \"bg\"", "type": "n8n-nodes-base.editImage", "position": [2600, 180], "parameters": {"options": {"format": "jpeg", "fileName": "out.png"}, "operation": "composite", "positionX": "={{ $json.center.x - $json.metaTop.size.width }}", "positionY": "={{ $json.center.y - $json.metaTop.size.height }}", "dataPropertyName": "bg", "dataPropertyNameComposite": "top"}, "typeVersion": 1}, {"id": "ee7787f1-c717-416c-b076-18200e3109a0", "name": "Sticky Note", "type": "n8n-nodes-base.stickyNote", "position": [1020, -69.74382694102701], "parameters": {"width": 820.7320856852112, "height": 612.1135700636542, "content": "## Retrieve the Background Image and fetch Meta from the File\n### Like Sizes, to properly place the \"Top Image\" a.k.a \"Watermark\" a.k.a \"Overlay\" above the \"Background\"-Image"}, "typeVersion": 1}, {"id": "80925b86-42dc-4cf9-8a3b-b8df913d4d8c", "name": "Sticky Note1", "type": "n8n-nodes-base.stickyNote", "position": [2180, 60], "parameters": {"width": 296.5141962579569, "height": 568.2663488290325, "content": "## Calculate the Position for the \"Top\" Image\n\n\n\n\n\n\n\n\n\n\n\n\n\nWe want to place the \"Top\"-Image it dead-center on the \"Background\"-Image. But the upper-left-corner is the origin for the operation. \n\nYou may adjust it to your needs, to \u2013 for example adjust the size of your Overlay-Image, or place it in some corner. Adjust the Formular to your needs.\n\n**\u26a0\ufe0f Limitation:** The Image that Overlays the Background-Image has to be <= the size of the background image to work properly."}, "typeVersion": 1}, {"id": "89dafe6a-d49a-43f7-94d2-3c5de5b67c9f", "name": "Sticky Note2", "type": "n8n-nodes-base.stickyNote", "position": [2520, 360], "parameters": {"color": 4, "width": 257.68541919015513, "height": 99.86957475347333, "content": "### \ud83d\uddbc\ufe0f Binary Property *bg* should now be the composite image and be overlayed by *top*"}, "typeVersion": 1}, {"id": "384bd626-fdbb-4073-ad9d-671b4aefe19e", "name": "Note3", "type": "n8n-nodes-base.stickyNote", "position": [301.53703835383794, -60], "parameters": {"width": 448.40729941128825, "height": 745.9248098393447, "content": "## Instructions\n\nThis automation *overlays* a `background` image with another image, making it easy to add watermarks or logos.\n\nYou can use this automation to **watermark** your images by overlaying them with a transparent version of your logo. If you'd like to **place your logo in a specific corner**, feel free to _adjust the position_ of the overlay image in the code node.\n\n### How it Works\n\n1. Both images are downloaded, so we can process binary files (you can modify the source, tho.)\n2. We extract metadata, focusing on the dimensions of each image.\n3. The position of the overlay image is calculated (default: dead center of the background image).\n4. The two images are *composited* together.\n\n### Limitations and Optimization Opportunities\n\n1. The overlay image must be the same size or smaller than the background image for proper alignment.\n2. The overlay image does not automatically scale to match the proportions of the background image.\n\n![Image](https://cloud.let-the-work-flow.com/logo-64.png)  \nEnjoy the workflow! \u2764\ufe0f  \n[let the workf low](https://let-the-work-flow.com) \u2014 Workflow Automation & Development"}, "typeVersion": 1}], "pinData": {}, "connections": {"Get Meta BG": {"main": [[{"node": "Nest Bg Meta", "type": "main", "index": 0}]]}, "Get Meta Top": {"main": [[{"node": "Nest Top Meta", "type": "main", "index": 0}]]}, "Nest Bg Meta": {"main": [[{"node": "Rename Image Binary Background Image", "type": "main", "index": 0}]]}, "Nest Top Meta": {"main": [[{"node": "Rename Image Binary Top Image", "type": "main", "index": 0}]]}, "Calculate Center": {"main": [[{"node": "Let \"top\" overlay \"bg\"", "type": "main", "index": 0}]]}, "Get Logo for the Watermark": {"main": [[{"node": "Get Meta Top", "type": "main", "index": 0}]]}, "Get the Image for Background": {"main": [[{"node": "Get Meta BG", "type": "main", "index": 0}]]}, "Rename Image Binary Top Image": {"main": [[{"node": "Wait for both Images and merge Binary in one Item", "type": "main", "index": 1}]]}, "When clicking \"Test workflow\"": {"main": [[{"node": "Get the Image for Background", "type": "main", "index": 0}, {"node": "Get Logo for the Watermark", "type": "main", "index": 0}]]}, "Rename Image Binary Background Image": {"main": [[{"node": "Wait for both Images and merge Binary in one Item", "type": "main", "index": 0}]]}, "Wait for both Images and merge Binary in one Item": {"main": [[{"node": "Calculate Center", "type": "main", "index": 0}]]}}}