{
  "title": "DPI converter",
  "human_url": "https://happytails.ai/en/image-tools/dpi-converter/",
  "agent_url": "https://happytails.ai/agents/en/image-tools/dpi-converter/",
  "language": "en",
  "markdown_url": "https://happytails.ai/en/image-tools/dpi-converter.md",
  "content": "DPI converter\nChange print-resolution metadata.\nUseful next steps\nRemove metadata\nCreate a fresh image copy without the original embedded metadata.\nHow to use DPI converter\nChoose a file in PNG.\nReview the settings, then choose Run DPI converter.\nReview the result, then use Copy result or a download link when available.\nWorking with dpi converter\nAn image conversion changes its file format; resizing changes pixel dimensions; compression changes how the image is stored. These operations can be combined, but each solves a different problem. Choose the dimensions needed by the destination before optimizing the final file size.\nCommon questions\nDoes converting JPG to PNG improve the original detail?\nA lossless destination does not recover detail already discarded by a lossy source. It can avoid another lossy save, but it may also produce a larger file.\nWhat happens to transparent pixels?\nThat depends on the output format. Formats without transparency need a background color. Check edges around logos, product cutouts and text so that an unexpected background does not become part of the exported image.\nContinue your workflow:\nRemove metadata\n.",
  "content_format": "text/plain",
  "visibility": "public",
  "links": [
    {
      "name": "Remove metadata Create a fresh image copy without the original embedded metadata.",
      "url": "https://happytails.ai/en/image-tools/remove-metadata/"
    }
  ],
  "tool": {
    "id": "dpi-converter",
    "category": "image-tools",
    "built": true,
    "requirements": "Change print-resolution metadata; clearly distinguish DPI from adding pixels.",
    "implementation": {
      "fields": [
        {
          "key": "dpi",
          "label": "Print DPI",
          "value": 300,
          "type": "number"
        }
      ],
      "files": true,
      "input": false,
      "accept": ".png",
      "note": "Edits PNG physical-resolution metadata only; it does not resize pixels or add image detail.",
      "experience": {
        "automatic": false,
        "single": false,
        "label": "Your text",
        "placeholder": "Type or paste your input…",
        "help": "Up to 1,000,000 characters. Review the settings before running.",
        "action": null
      },
      "mode": "explicit",
      "interactive": false
    },
    "execution": "Browser interface",
    "api": null,
    "browser_agent": {
      "supported": true,
      "name": "run_current_tool",
      "discovery": "WebMCP on the human page in a supporting browser",
      "verification": "See audit/API-AUDIT.md; availability is not verification"
    }
  },
  "markdown": "# DPI converter\n\n- Human page: https://happytails.ai/en/image-tools/dpi-converter/\n- Markdown: https://happytails.ai/en/image-tools/dpi-converter.md\n- Structured JSON: https://happytails.ai/agents/en/image-tools/dpi-converter/index.json\n- Visibility: public\n\n## Tool capabilities\n\n| Property | Value |\n| --- | --- |\n| Tool ID | `dpi-converter` |\n| Category | image-tools |\n| Implementation | Registered implementation. Registration alone is not a production-quality guarantee. |\n| Browser execution | Use the visible action or interactive controls. |\n| Browser processing | Browser; see tool notes for network behavior. |\n| HTTP API | Not callable through HTTP. |\n| Browser-agent interface | run_current_tool |\n\n### Implementation notes\n\nEdits PNG physical-resolution metadata only; it does not resize pixels or add image detail.\n\n### Inputs and settings\n\nNo free-text input is required. Use the file inputs and/or settings below.\n\nAccepted browser files: `.png`. Choose one file.\n\n| Setting | Meaning | Control type | Default | Constraints |\n| --- | --- | --- | --- | --- |\n| `dpi` | Print DPI | number | 300 |  |\n\n### Browser-agent workflow\n\n1. Open the human page in a browser that supports WebMCP.\n2. Discover the interface exposed by that page; use its actual schema.\n3. Select files on the page first when the tool requires files.\n4. Call `run_current_tool` with valid input and settings.\n5. Inspect the returned result or error and the displayed output. Retrieve files from the displayed download links.\n\nCalls do not automatically copy or download results. Browser permissions still apply. Interface availability alone is not proof of successful execution.\n\n### Planning specification\n\nChange print-resolution metadata; clearly distinguish DPI from adding pixels.\n\nThis describes intended requirements. Use the implementation notes, interface schema and observed output to determine current support.\n\n### Complete machine-readable capability record\n\n```json\n{\n  \"id\": \"dpi-converter\",\n  \"category\": \"image-tools\",\n  \"built\": true,\n  \"requirements\": \"Change print-resolution metadata; clearly distinguish DPI from adding pixels.\",\n  \"implementation\": {\n    \"fields\": [\n      {\n        \"key\": \"dpi\",\n        \"label\": \"Print DPI\",\n        \"value\": 300,\n        \"type\": \"number\"\n      }\n    ],\n    \"files\": true,\n    \"input\": false,\n    \"accept\": \".png\",\n    \"note\": \"Edits PNG physical-resolution metadata only; it does not resize pixels or add image detail.\",\n    \"experience\": {\n      \"automatic\": false,\n      \"single\": false,\n      \"label\": \"Your text\",\n      \"placeholder\": \"Type or paste your input…\",\n      \"help\": \"Up to 1,000,000 characters. Review the settings before running.\",\n      \"action\": null\n    },\n    \"mode\": \"explicit\",\n    \"interactive\": false\n  },\n  \"execution\": \"Browser interface\",\n  \"api\": null,\n  \"browser_agent\": {\n    \"supported\": true,\n    \"name\": \"run_current_tool\",\n    \"discovery\": \"WebMCP on the human page in a supporting browser\",\n    \"verification\": \"See audit/API-AUDIT.md; availability is not verification\"\n  }\n}\n```\n\n## Page guide\n\nChange print-resolution metadata.\n\n## Useful next steps\n\n- [Remove metadata](https://happytails.ai/en/image-tools/remove-metadata/): Create a fresh image copy without the original embedded metadata. ([Markdown](https://happytails.ai/en/image-tools/remove-metadata.md))\n\n## How to use DPI converter\n\n1. Choose a file in PNG.\n2. Review the settings, then choose Run DPI converter.\n3. Review the result, then use Copy result or a download link when available.\n\n## Working with dpi converter\n\nAn image conversion changes its file format; resizing changes pixel dimensions; compression changes how the image is stored. These operations can be combined, but each solves a different problem. Choose the dimensions needed by the destination before optimizing the final file size.\n\n## Common questions\n\n### Does converting JPG to PNG improve the original detail?\n\nA lossless destination does not recover detail already discarded by a lossy source. It can avoid another lossy save, but it may also produce a larger file.\n\n### What happens to transparent pixels?\n\nThat depends on the output format. Formats without transparency need a background color. Check edges around logos, product cutouts and text so that an unexpected background does not become part of the exported image.\n\nContinue your workflow: [Remove metadata](https://happytails.ai/en/image-tools/remove-metadata/).\n"
}