Create Download Activity


The Create Download activity is used to create a download link for arbitrary content that can be passed to a client workflow and presented to a user. The download link has a limited lifespan and can only be accessed in network environments that can access the server.


The Create Download activity could be used to create a download link for file content read with the Read File Bytes activity. This URL could be set as an output of the server workflow with the Set Workflow Output activity. Finally, a clickable link could be presented in a form by using the markdown option in the Set Form Element Property activity.




Type: String | Number Array

The text or byte content of the file.

Bytes are the raw binary values that represent content. A byte array is represented by a list of numbers between 0 and 255.

Providing empty or invalid content will cause an error.

Content Type


Type: "application/json" | "application/octet-stream" | "application/pdf" | "application/xml" | "application/zip" | "image/jpeg" | "image/png" | "text/csv" | "text/html" | "text/plain" | String

The MIME type of the content. This input will determine how the content is served to the user. For example, PDF ("application/pdf") and text ("text/plain") files will be displayed, whereas CSV ("text/csv") files will be downloaded.

Workflow Server supports any MIME type that is registered with the Internet Assigned Numbers Authority (IANA) and implemented by Microsoft's FileExtensionContentTypeProvider.The full list of MIME types registered with IANA can be found here.

If the Content Type input is blank or invalid, the MIME type will be determined from the file extension in the Filename input. If this is not possible, the MIME type will be determined from the type of the Content input. String content will use the "text/plain" MIME type, and byte content will use the "application/octet-stream" MIME type.

More information about MIME types can be found here.



Type: String

The full name (with the extension) that the file will be saved as when the user downloads it.

A filename that is too long, empty, or has invalid characters, such as slashes or colons, will cause an error. Filenames with executable extensions, such as ".exe", will cause an error as these file types are a security risk to the end user.



Type: Number

The time till expiration of the download link, in minutes. After this time period has passed, the download link will no longer allow access to the file.

If a value is not given or the value is invalid, the maximum lifetime of a link (7 days), will be used. A shorter expiration time provides higher security.



Type: String

The download link URL. Accessing this URL will download or display the file.


For information about the ID, Display Name, and Description properties, see Properties Common to all Activities.

Supported Environments

Environments capable of running this activity




Geocortex Web

Geocortex Mobile

Geocortex Viewer for HTML5

Web AppBuilder

Offline Support

This activity does not work when the device is offline.

© 2019 Latitude Geographics Group Ltd. All Rights Reserved.

Documentation Version 5.15