diff --git a/utils/mapping_generator.py b/utils/mapping_generator.py
index df489032e7f5874e94ac50fcec2edccaefca3ac2..bc3983ed1eacd4da4953f907dfd68dc04bceec66 100755
--- a/utils/mapping_generator.py
+++ b/utils/mapping_generator.py
@@ -17,6 +17,7 @@
 
 import shutil
 import math
+import os
 
 import click
 import yaml
@@ -88,6 +89,13 @@ def cli():
 
     To prepare a template, create an SVG using Inkscape, and assign custom IDs to text elements that should be managed
     by the mapping generator.
+
+    These elements can be populated by applying user-provided parameters against the template. Parameters are provided
+    in the form of YAML file. The YAML file should have the 'mappables' key at the top level of the document, which then
+    contains key-to-value mappings for custom text element IDs.
+
+    The easiest way to generate the initial (blank) parameters file is by using the 'info' command alongside the output
+    format option.
     """
     pass
 
@@ -137,5 +145,42 @@ def info(template, search, output_format):
         display_mappables_as_yaml(matched_mappables)
 
 
+@cli.command()
+@click.argument('template', type=click.File('r'))
+@click.argument('parameters', type=click.File('r'))
+@click.argument('output', type=click.Path(dir_okay=False, writable=True, allow_dash=True))
+@click.option('--force-overwrite', '-f', is_flag=True, help='force overwriting output file')
+def apply(template, parameters, output, force_overwrite):
+    """
+    Applies user-provided parameters against the template, and outputs the result.
+    """
+
+    template_tree = ElementTree.fromstring(template.read())
+    namespaces = {
+        'svg': 'http://www.w3.org/2000/svg',
+    }
+
+    # Inkscape default ID starts with string 'text' unless user assigns custom ID.
+    mappable_elements = [
+        e for e in template_tree.findall('.//svg:text', namespaces) if not e.get('id').startswith('text')
+    ]
+
+    parameters = yaml.safe_load(parameters.read())
+
+    for element in mappable_elements:
+        element_id = element.get('id')
+        replacement = parameters['mappables'].get(element_id, '')
+        element.find('svg:tspan', namespaces).text = replacement
+
+    if os.path.exists(output) and not force_overwrite:
+        raise click.FileError(output, 'file already exists')
+
+    if os.path.isdir(output):
+        raise click.FileError(output, 'output must be a file path')
+
+    with click.open_file(output, 'wb') as output_file:
+        output_file.write(ElementTree.tostring(template_tree))
+
+
 if __name__ == '__main__':
     cli()