{
  "openapi": "3.0.1",
  "info": {
    "title": "ConvertAPI",
    "description": "# High-Performance File Conversion API\nConvert Word, Excel, PowerPoint, HTML, PDF and Image formats with our powerful file conversion service.\nWe support more than [200 file types.]( https://www.convertapi.com/doc/file-formats)",
    "termsOfService": "https://www.convertapi.com/terms",
    "contact": {
      "url": "https://www.convertapi.com/support",
      "email": "support@convertapi.com"
    },
    "license": {
      "name": "Apache 2.0",
      "url": "http://www.apache.org/licenses/LICENSE-2.0.html"
    },
    "version": "v2"
  },
  "servers": [
    {
      "url": "https://v2.convertapi.com"
    },
    {
      "url": "https://eu-v2.convertapi.com"
    },
    {
      "url": "https://uk-v2.convertapi.com"
    },
    {
      "url": "https://us-v2.convertapi.com"
    },
    {
      "url": "https://ca-v2.convertapi.com"
    },
    {
      "url": "https://as-v2.convertapi.com"
    },
    {
      "url": "https://au-v2.convertapi.com"
    }
  ],
  "paths": {
    "/convert/png/to/compress": {
      "summary": "Compress PNG API",
      "description": "Compress PNG images to reduce file size with quality-aware controls, compression level, percentage, and target size options.",
      "post": {
        "tags": [
          "Conversion"
        ],
        "externalDocs": {
          "description": "Read more about the converter",
          "url": "https://www.convertapi.com/png-to-compress"
        },
        "requestBody": {
          "content": {
            "multipart/form-data": {
              "schema": {
                "required": [
                  "File"
                ],
                "type": "object",
                "properties": {
                  "File": {
                    "type": "string",
                    "description": "File to be converted. Value can be URL or file content.",
                    "format": "binary",
                    "x-ca-featured": true,
                    "x-ca-label": "File",
                    "x-ca-group": "Input",
                    "x-ca-type": "File",
                    "x-ca-representation": "Default",
                    "x-ca-allowed-extensions": [
                      "png"
                    ]
                  },
                  "FileName": {
                    "type": "string",
                    "description": "The `FileName` property defines the name of the output file(s) generated by the file conversion API, ensuring safe and\r\nunique file naming. It sanitizes input filenames to remove potentially harmful characters, automatically appends the\r\ncorrect file extension based on the target format, and includes an indexing feature to distinguish multiple output files\r\nfrom a single input. For example, converting `report.docx` to PDF format might result in `report.pdf` for a single file,\r\nor `report_0.pdf`, `report_1.pdf` for multiple files, ensuring each output file is uniquely identifiable.",
                    "x-ca-featured": false,
                    "x-ca-label": "Output file name",
                    "x-ca-group": "Output",
                    "x-ca-type": "String",
                    "x-ca-representation": "Default",
                    "x-ca-range": {
                      "from": "1",
                      "to": "200"
                    }
                  },
                  "CompressionLevel": {
                    "enum": [
                      "Lossless",
                      "Good",
                      "Extreme"
                    ],
                    "type": "string",
                    "description": "Image compression level.",
                    "default": "Extreme",
                    "x-ca-featured": false,
                    "x-ca-label": "Compression level",
                    "x-ca-group": "Image",
                    "x-ca-type": "Collection",
                    "x-ca-representation": "Dropdown",
                    "x-ca-values": {
                      "Lossless": "Lossless",
                      "Good": "Good",
                      "Extreme": "Extreme"
                    }
                  },
                  "CompressionPercentage": {
                    "maximum": 100,
                    "minimum": 10,
                    "type": "integer",
                    "description": "Compress the image to a target size, given as a percentage of the original file size. A lower value produces a smaller file, so `20` aims for roughly 20% of the original size and `90` applies only light compression. Overrides `CompressionLevel` unless it is set to `lossless`.\r\n",
                    "x-ca-featured": false,
                    "x-ca-label": "Compression percentage",
                    "x-ca-group": "Image",
                    "x-ca-type": "Integer",
                    "x-ca-representation": "Default",
                    "x-ca-range": {
                      "from": "10",
                      "to": "100"
                    }
                  },
                  "CompressionFileSize": {
                    "maximum": 30000,
                    "minimum": 10,
                    "type": "integer",
                    "description": "Compress the image to a target file size in kilobytes. A lower value produces a smaller file. This is a best-effort target: the result is the closest size at or below the requested value that the format allows. Overrides `CompressionLevel` unless it is set to `lossless`.\r\n",
                    "x-ca-featured": false,
                    "x-ca-label": "Compression file size",
                    "x-ca-group": "Image",
                    "x-ca-type": "Integer",
                    "x-ca-representation": "Default",
                    "x-ca-range": {
                      "from": "10",
                      "to": "30000"
                    }
                  },
                  "Timeout": {
                    "maximum": 1200,
                    "minimum": 10,
                    "type": "integer",
                    "description": "Conversion timeout in seconds.",
                    "default": 900,
                    "x-ca-featured": false,
                    "x-ca-label": "Timeout",
                    "x-ca-group": "Execution",
                    "x-ca-type": "Integer",
                    "x-ca-representation": "Default",
                    "x-ca-range": {
                      "from": "10",
                      "to": "1200"
                    }
                  },
                  "StoreFile": {
                    "type": "boolean",
                    "description": "When the `StoreFile` parameter is set to `True`, your converted file is written to ConvertAPI’s encrypted, temporary storage and made available via a time-limited secure download URL, valid for up to 3 hours. After this period, the file is permanently deleted.\r\n\r\nWhen `StoreFile` is set to `False`, conversion happens entirely in-memory. The raw file bytes are streamed back in the API response without touching disk or external storage, ensuring maximum security and zero persistence so that only you can access the content.\r\n",
                    "default": false,
                    "x-ca-featured": false,
                    "x-ca-label": "Store file",
                    "x-ca-group": "Output",
                    "x-ca-type": "Bool",
                    "x-ca-representation": "Default"
                  }
                }
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "Success",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "ConversionCost": {
                      "type": "integer",
                      "description": "This amount will be deducted from your balance after the conversion.",
                      "format": "int32",
                      "example": 1
                    },
                    "Files": {
                      "type": "array",
                      "items": {
                        "type": "object",
                        "properties": {
                          "FileName": {
                            "type": "string",
                            "description": "Name of the converted file.",
                            "example": "myfile.pdf"
                          },
                          "FileExt": {
                            "type": "string",
                            "description": "File type (file name extension)",
                            "example": "pdf"
                          },
                          "FileSize": {
                            "type": "integer",
                            "description": "File size",
                            "format": "int32",
                            "example": 111955
                          },
                          "FileId": {
                            "type": "string",
                            "description": "File ID",
                            "example": "25811safe8e61dd3f51ef00ee5f58b92"
                          },
                          "Url": {
                            "type": "string",
                            "description": "File URL",
                            "example": "https://v2.convertapi.com/d/v01plsb72o0cmdooq90w4d1lnqsf6oy4/myfile.pdf"
                          },
                          "FileData": {
                            "type": "string",
                            "description": "Base64 encoded file data",
                            "format": "base64",
                            "example": "JVBERi0xLjcKJb662+4KMSAwIG9iago8PC9UeXBlIC9DYXRhbG9n..."
                          }
                        }
                      }
                    }
                  },
                  "externalDocs": {
                    "url": "https://www.convertapi.com/doc/content-types#applicationjson-1"
                  }
                }
              },
              "multipart/mixed": {
                "schema": {
                  "type": "string",
                  "format": "binary",
                  "externalDocs": {
                    "url": "https://www.convertapi.com/doc/content-types#multipartmixed"
                  }
                },
                "example": "--43cf1475-ab15-4c6b-b5ee-e2cbcedfe92f\nConversionCost: 1\nContent-Type: application/octet-stream\nContent-Disposition: attachment; filename=\"my_file.pdf\"; size=8475\n\n--FILE CONTENT--\n--43cf1475-ab15-4c6b-b5ee-e2cbcedfe92f--\n"
              },
              "application/octet-stream": {
                "schema": {
                  "type": "string",
                  "format": "binary",
                  "externalDocs": {
                    "url": "https://www.convertapi.com/doc/content-types#applicationoctet-stream-1"
                  }
                }
              }
            }
          },
          "400": {
            "$ref": "#/components/responses/400"
          },
          "401": {
            "$ref": "#/components/responses/401"
          },
          "415": {
            "$ref": "#/components/responses/415"
          },
          "500": {
            "$ref": "#/components/responses/500"
          },
          "503": {
            "$ref": "#/components/responses/503"
          }
        },
        "security": [
          {
            "secret": [ ]
          },
          {
            "token": [ ]
          },
          {
            "jwt": [ ]
          }
        ]
      },
      "x-ca-overview": "Compress PNG images to smaller sizes while preserving visual quality and full alpha transparency. Choose a compression level, set a percentage reduction, or target a specific output file size to meet web, email, and storage limits. Smart palette optimization reduces file sizes by up to 80% without noticeable artifacts, making it ideal for optimizing UI assets, screenshots, logos, and graphics for faster page loads and lower bandwidth. Upload a .png and get an optimized .png suitable for fast delivery and efficient archiving.\n",
      "x-ca-overview-markdown": "Compress PNG images to smaller sizes while preserving visual quality and full alpha transparency. Choose a compression level, set a percentage reduction, or target a specific output file size to meet web, email, and storage limits. Smart palette optimization reduces file sizes by up to 80% without noticeable artifacts, making it ideal for optimizing UI assets, screenshots, logos, and graphics for faster page loads and lower bandwidth. Upload a .png and get an optimized .png suitable for fast delivery and efficient archiving.\r\n",
      "x-ca-meta-title": "PNG Compression API - Compress PNG, Optimize & Reduce Size",
      "x-ca-meta-description": "Compress PNG via API. Set level, percentage, or target size to shrink files while preserving transparency and visual quality for web, email, and storage.",
      "x-ca-keywords": "",
      "x-ca-source-formats": "png",
      "x-ca-destination-formats": "png",
      "x-ca-tags": [
        "image",
        "optimize"
      ]
    }
  },
  "components": {
    "schemas": {
      "fileId": {
        "maxLength": 32,
        "minLength": 32,
        "type": "string",
        "description": "Uploaded File ID",
        "example": "25811safe8e61dd3f51ef00ee5f58b92"
      },
      "error": {
        "type": "object",
        "properties": {
          "Code": {
            "type": "integer",
            "description": "Error message code",
            "format": "int32",
            "example": 4000
          },
          "Message": {
            "type": "string",
            "description": "Error message text",
            "example": "Parameter validation error."
          }
        },
        "externalDocs": {
          "url": "https://www.convertapi.com/doc/response-codes"
        }
      }
    },
    "responses": {
      "400": {
        "description": "Malformed request",
        "content": {
          "application/json": {
            "schema": {
              "$ref": "#/components/schemas/error"
            }
          }
        }
      },
      "401": {
        "description": "Authentication error",
        "content": {
          "application/json": {
            "schema": {
              "$ref": "#/components/schemas/error"
            }
          }
        }
      },
      "415": {
        "description": "File type error",
        "content": {
          "application/json": {
            "schema": {
              "$ref": "#/components/schemas/error"
            }
          }
        }
      },
      "500": {
        "description": "Conversion failure",
        "content": {
          "application/json": {
            "schema": {
              "$ref": "#/components/schemas/error"
            }
          }
        }
      },
      "503": {
        "description": "Conversion rate limit error",
        "content": {
          "application/json": {
            "schema": {
              "$ref": "#/components/schemas/error"
            }
          }
        }
      }
    },
    "parameters": {
      "fileId": {
        "name": "fileId",
        "in": "path",
        "description": "File ID",
        "required": true,
        "schema": {
          "$ref": "#/components/schemas/fileId"
        }
      },
      "src": {
        "name": "src",
        "in": "path",
        "description": "Source file format (docx, pdf, jpg etc.)",
        "required": true,
        "schema": {
          "type": "string"
        }
      },
      "dst": {
        "name": "dst",
        "in": "path",
        "description": "Destination file format (docx, pdf, jpg etc.)",
        "required": true,
        "schema": {
          "type": "string"
        }
      }
    },
    "headers": {
      "content-disposition": {
        "description": "File information ([docummentation](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Disposition))",
        "schema": {
          "type": "string"
        }
      },
      "file-name": {
        "description": "File name",
        "schema": {
          "type": "string"
        }
      },
      "file-ext": {
        "description": "File name extension",
        "schema": {
          "type": "string"
        }
      },
      "file-size": {
        "description": "File size",
        "schema": {
          "type": "integer"
        }
      }
    },
    "securitySchemes": {
      "secret": {
        "type": "http",
        "description": "[Get `Secret`](https://www.convertapi.com/a/secret)",
        "scheme": "bearer"
      },
      "token": {
        "type": "http",
        "description": "[Get `Token`](https://www.convertapi.com/a/api-tokens)",
        "scheme": "bearer"
      },
      "jwt": {
        "type": "http",
        "description": "[Get `JWT`](https://www.convertapi.com/a/jwt-tokens)",
        "scheme": "bearer",
        "bearerFormat": "JWT"
      }
    }
  },
  "tags": [
    {
      "name": "Conversion",
      "description": "File Conversion API call",
      "externalDocs": {
        "description": "File Conversion related operations",
        "url": "https://www.convertapi.com/doc/content-types"
      }
    },
    {
      "name": "File Server",
      "description": "ConvertAPI temporary file storage",
      "externalDocs": {
        "description": "File Server related operations",
        "url": "https://www.convertapi.com/doc/upload"
      }
    },
    {
      "name": "User",
      "description": "API User",
      "externalDocs": {
        "description": "API User related operations",
        "url": "https://www.convertapi.com/doc/user"
      }
    }
  ],
  "externalDocs": {
    "description": "Find out more about ConvertAPI",
    "url": "https://www.convertapi.com/doc"
  }
}