{ "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/images/to/join": { "summary": "Join Images API", "description": "Join images with customizable spacing and format options.", "post": { "tags": [ "Conversion" ], "externalDocs": { "description": "Read more about the converter", "url": "https://www.convertapi.com/images-to-join" }, "requestBody": { "content": { "multipart/form-data": { "schema": { "required": [ "Files" ], "type": "object", "properties": { "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" }, "Files": { "type": "array", "items": { "type": "string", "format": "binary" }, "description": "Files to be converted. Value can be URL or file content. If used in query or multipart content parameter must be suffixed with index e.g. Files[0], Files[1], Files[2]...", "x-ca-featured": true, "x-ca-label": "Files", "x-ca-group": "Input", "x-ca-type": "File", "x-ca-representation": "Default", "x-ca-allowed-extensions": [ "jpg", "jpeg", "png", "tiff", "jfif" ] }, "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" } }, "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" } }, "JoinDirection": { "enum": [ "vertical", "horizontal" ], "type": "string", "description": "The property determines the direction in which individual images are combined into a single image. This property specifies whether the images will be joined in a vertical or horizontal sequence, allowing for flexible layout configurations.", "default": "vertical", "x-ca-featured": false, "x-ca-label": "Join direction", "x-ca-group": "Image", "x-ca-type": "Collection", "x-ca-representation": "Dropdown", "x-ca-values": { "vertical": "Vertical", "horizontal": "Horizontal" } }, "ImageSpacing": { "maximum": 200, "minimum": 0, "type": "integer", "description": "The property defines the amount of space, in pixels, between individual images when they are combined into a single image.", "default": 0, "x-ca-featured": false, "x-ca-label": "Spacing between images", "x-ca-group": "Image", "x-ca-type": "Integer", "x-ca-representation": "Default", "x-ca-range": { "from": "0", "to": "200" } }, "SpacingColor": { "type": "string", "description": "The property defines the color of the space between individual images when they are combined into a single image. \r\nThis property works in conjunction with `ImageSpacing` to enhance the visual appearance of the composite image by allowing customization of the spacing area's color.", "x-ca-featured": false, "x-ca-label": "Space color", "x-ca-group": "Image", "x-ca-type": "Color", "x-ca-representation": "Default" }, "ImageOutputFormat": { "enum": [ "auto", "jpg", "png", "tiff" ], "type": "string", "description": "The property specifies the format of the final image after the individual images have been joined. This property allows you to choose the desired file format for the output image, ensuring compatibility with different use cases and requirements. Additionally, it provides an option to automatically detect the output format based on the format of the joining images.", "default": "auto", "x-ca-featured": false, "x-ca-label": "Image format", "x-ca-group": "Image", "x-ca-type": "Collection", "x-ca-representation": "Dropdown", "x-ca-values": { "auto": "Auto", "jpg": "JPG", "png": "PNG", "tiff": "TIFF" } } } } } } }, "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": { "$ref": "#/components/responses/503" } }, "security": [ { "secret": [ ] }, { "token": [ ] }, { "jwt": [ ] } ] }, "x-ca-overview": null, "x-ca-meta-title": "Join Images API: Customize Spacing, Color, and Format", "x-ca-meta-description": "Join Images API allows combining images with customizable spacing, color, and format options. Supports vertical and horizontal joins with automatic format detection.", "x-ca-source-formats": "jpg,jpeg,png,tiff,jfif", "x-ca-destination-formats": "jpg,png,tiff", "x-ca-tags": [ "image" ] } }, "components": { "schemas": { "fileId": { "maxLength": 32, "minLength": 32, "type": "string", "description": "Uploaded File ID", "example": "25811safe8e61dd3f51ef00ee5f58b92" }, "error": { "type": "object", "properties": { "Code": { "type": "integer", "description": "Error message code", "format": "int32", "example": 4000 }, "Message": { "type": "string", "description": "Error message text", "example": "Parameter validation error." } }, "externalDocs": { "url": "https://www.convertapi.com/doc/response-codes" } } }, "responses": { "400": { "description": "Malformed request", "content": { "application/json": { "schema": { "$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" } }