Umbraco does not touch the default maximum allowed content size of the different services, but you can configure this yourself.

    Using IIS

    To configure the default 28.6MB upload limit using IIS, we have to create a web.config file at the root of the project. It should contain this:

    <?xml version="1.0"?>
    <configuration>
      <system.webServer>
        <security>
          <requestFiltering>
            <!-- ~ Below is the number of bytes allowed, 4GB is the maximum -->
            <requestLimits maxAllowedContentLength="2000000" />
          </requestFiltering>
        </security>
      </system.webServer>
    </configuration>
    

    maxAllowedContentLength is specified in bytes, so this configuration would limit requests, and therefore uploaded files, to 2 megabytes

    If your site is hosted on Umbraco Cloud, this is the method you should use.

    Using Kestrel

    Runtime settings allow you to configure the MaxRequestLength and MaxQueryStringLength for kestrel. If you want to upload files larger than 28.6MB, then you have to configure these settings. If nothing is configured requests and query strings can only be the default size and smaller.

    An example of a configuration could look something like this:

    "Umbraco": {
      "CMS": {
        "Runtime": {
          "MaxQueryStringLength": 90,
          "MaxRequestLength": 2000
        }
      }
    }

    MaxRequestLength is specified in kilobytes, so this configuration would limit requests, and therefore uploaded files, to 2 megabytes, and a maximum query string length of 90 characters.

    Using Nginx

    Here's the documentation link to Nginx: https://nginx.org/en/docs/http/ngx_http_core_module.html#client_max_body_size

    Using apache

    Here's the documentation link to apache: https://httpd.apache.org/docs/2.2/mod/core.html#limitrequestbody