happytails.ai

DPI Converter

Open DPI Converter on Happytails.ai. This view has the same page content and links, with explicit tool capabilities. Read the processing notes before using a tool.

Tool capabilities

{
  "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,
      "inputMaxLength": 1000000,
      "inputMode": "text",
      "label": "Your text",
      "placeholder": "Type or paste your input…",
      "help": "Up to 1,000,000 characters. Review the settings before running.",
      "helpParts": [
        "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"
  }
}

Page guide

Set an image's print resolution without changing its pixels.

How to use DPI converter
  1. Choose a file in PNG.
  2. Review the settings, then choose Run DPI converter.
  3. Review the result, then use Copy result or a download link when available.

Useful next steps

Working with dpi converter

An 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.

Common questions

Does converting JPG to PNG improve the original detail?

A 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.

What happens to transparent pixels?

That 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.

Continue your workflow: Remove metadata.