diff --git a/packages/viz/src/module/Dockerfile b/packages/viz/src/module/Dockerfile
index 813532c5..8a0caa42 100644
--- a/packages/viz/src/module/Dockerfile
+++ b/packages/viz/src/module/Dockerfile
@@ -27,7 +27,7 @@ COPY --from=graphviz "${PREFIX}" "${PREFIX}"
 COPY viz.c pre.js .
 
 RUN mkdir -p "${OUTPUT}"
-RUN emcc -Oz ${DEBUG:+-g2} --closure=0 --no-entry -sMODULARIZE=1 -sMINIMAL_RUNTIME=1 -sFILESYSTEM=0 -sASSERTIONS=0 -sALLOW_MEMORY_GROWTH=1 -sENVIRONMENT=web -sEXPORT_KEEPALIVE=1 -sEXPORTED_FUNCTIONS="['_malloc', '_free']" -s EXPORTED_RUNTIME_METHODS="['ccall', 'UTF8ToString', 'lengthBytesUTF8', 'stringToUTF8', 'getValue']" -sINCOMING_MODULE_JS_API="['wasm']" --pre-js pre.js -o "${OUTPUT}/module.mjs" viz.c -I"${PREFIX}/include" -I"${PREFIX}/include/graphviz" -L"${PREFIX}/lib" -L"${PREFIX}/lib/graphviz" -lgvplugin_dot_layout -lgvplugin_neato_layout -lgvplugin_core -lgvc -lpathplan -lcgraph -lxdot -lcdt -lexpat
+RUN emcc -Oz ${DEBUG:+-g2} --closure=0 --no-entry -sMODULARIZE=1 -sMINIMAL_RUNTIME=1 -sASSERTIONS=0 -sALLOW_MEMORY_GROWTH=1 -sENVIRONMENT=web -sEXPORT_KEEPALIVE=1 -sEXPORTED_FUNCTIONS="['_malloc', '_free']" -s EXPORTED_RUNTIME_METHODS="['ccall', 'UTF8ToString', 'lengthBytesUTF8', 'stringToUTF8', 'getValue', 'FS', 'PATH']" -sINCOMING_MODULE_JS_API="['wasm']" -sWASM_BIGINT=1 --pre-js pre.js -o "${OUTPUT}/module.mjs" viz.c -I"${PREFIX}/include" -I"${PREFIX}/include/graphviz" -L"${PREFIX}/lib" -L"${PREFIX}/lib/graphviz" -lgvplugin_dot_layout -lgvplugin_neato_layout -lgvplugin_core -lgvc -lpathplan -lcgraph -lxdot -lcdt -lexpat
 
 
 FROM scratch AS export
diff --git a/packages/viz/src/viz.mjs b/packages/viz/src/viz.mjs
index 7656a11f..78e171a7 100644
--- a/packages/viz/src/viz.mjs
+++ b/packages/viz/src/viz.mjs
@@ -60,6 +60,30 @@ function withStringPointer(module, graphPointer, value, callbackFn) {
   module.ccall("viz_string_free", "number", ["number", "number"], [graphPointer, stringPointer]);
 }
 
+function createImageFiles(module, images) {
+  if (!images) {
+    return [];
+  }
+
+  return images.map(image => {
+    const path = module.PATH.join("/", image.name);
+    const data = `<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" width="${image.width}" height="${image.height}"></svg>
+`;
+
+    module.FS.createPath("/", module.PATH.dirname(path));
+    module.FS.writeFile(path, data);
+
+    return path;
+  });
+}
+
+function removeImageFiles(module, imageFilePaths) {
+  for (const path of imageFilePaths) {
+    module.FS.unlink(path);
+  }
+}
+
 function setDefaultAttributes(module, graphPointer, data) {
   if (data.graphAttributes) {
     for (const [name, value] of Object.entries(data.graphAttributes)) {
@@ -151,12 +175,14 @@ function readObjectInput(module, object, options) {
 }
 
 function renderInput(module, input, options) {
-  let graphPointer, resultPointer;
+  let graphPointer, resultPointer, imageFilePaths;
 
   try {
     module["agerrMessages"] = [];
     module["stderrMessages"] = [];
 
+    imageFilePaths = createImageFiles(module, options.images);
+
     if (typeof input === "string") {
       graphPointer = readStringInput(module, input, options);
     } else if (typeof input === "object") {
@@ -211,6 +237,10 @@ function renderInput(module, input, options) {
     if (resultPointer) {
       module.ccall("free", "number", ["number"], [resultPointer]);
     }
+
+    if (imageFilePaths) {
+      removeImageFiles(module, imageFilePaths);
+    }
   }
 }
 
diff --git a/packages/viz/test/render.test.mjs b/packages/viz/test/render.test.mjs
index 43858acf..d8c495fd 100644
--- a/packages/viz/test/render.test.mjs
+++ b/packages/viz/test/render.test.mjs
@@ -325,6 +325,50 @@ stop
 		pos="99,18",
 		width=0.75];
 }
+`,
+        errors: []
+      });
+    });
+
+    it("accepts an images option", function() {
+      const result = viz.render("graph { a[image=\"test.png\"] }", {
+        images: [
+          { name: "test.png", width: 300, height: 200 }
+        ]
+      });
+
+      assert.deepStrictEqual(result, {
+        status: "success",
+        output: `graph {
+	graph [bb="0,0,321.03,214.96"];
+	node [label="\\N"];
+	a	[height=2.9856,
+		image="test.png",
+		pos="160.51,107.48",
+		width=4.4587];
+}
+`,
+        errors: []
+      });
+    });
+
+    it("accepts URLs for image names", function() {
+      const result = viz.render("graph { a[image=\"http://example.com/test.png\"] }", {
+        images: [
+          { name: "http://example.com/test.png", width: 300, height: 200 }
+        ]
+      });
+
+      assert.deepStrictEqual(result, {
+        status: "success",
+        output: `graph {
+	graph [bb="0,0,321.03,214.96"];
+	node [label="\\N"];
+	a	[height=2.9856,
+		image="http://example.com/test.png",
+		pos="160.51,107.48",
+		width=4.4587];
+}
 `,
         errors: []
       });
diff --git a/packages/viz/test/types/render-options.ts b/packages/viz/test/types/render-options.ts
index 5260e281..904c0f35 100644
--- a/packages/viz/test/types/render-options.ts
+++ b/packages/viz/test/types/render-options.ts
@@ -31,6 +31,10 @@ options.edgeAttributes = {
   test: true
 };
 
+options.images = [{ name: "test.png", width: 300, height: 200 }];
+
+options.images = [{ name: "test.png", width: "1cm", height: "1cm" }];
+
 // @ts-expect-error
 options.format = false;
 
@@ -45,3 +49,9 @@ options.whatever = 123;
 
 // @ts-expect-error
 options.graphAttributes = { something: { whatever: 123 } };
+
+// @ts-expect-error
+options.images = [{ path: "test.png" }];
+
+// @ts-expect-error
+options.images = [{ url: "test.png" }];
diff --git a/packages/viz/types/index.d.ts b/packages/viz/types/index.d.ts
index 62a28ffa..ce9a8acf 100644
--- a/packages/viz/types/index.d.ts
+++ b/packages/viz/types/index.d.ts
@@ -28,6 +28,7 @@ export interface RenderOptions {
   graphAttributes?: Attributes
   nodeAttributes?: Attributes
   edgeAttributes?: Attributes
+  images?: ImageSize[]
 }
 
 export type RenderResult = SuccessResult | FailureResult
@@ -89,3 +90,9 @@ interface Subgraph {
   edges?: Edge[]
   subgraphs?: Subgraph[]
 }
+
+interface ImageSize {
+  name: string,
+  width: string | number,
+  height: string | number
+}
diff --git a/packages/website/src/api/index.html b/packages/website/src/api/index.html
index 185b2a7b..9dc27797 100644
--- a/packages/website/src/api/index.html
+++ b/packages/website/src/api/index.html
@@ -186,6 +186,20 @@ <h4>UMD Bundle</h4>
             <dd>
               <p>Sets the default edge attributes. This corresponds the <a href="https://www.graphviz.org/doc/info/command.html#-E"><code>-E</code> Graphviz command-line option</a>.</p>
             </dd>
+
+            <dt id="viz.RenderOptions.images"><code><b><a href="#viz.RenderOptions.images">images</a></b>?: <a href="#viz.ImageSize">ImageSize</a>[]</code></dt>
+            <dd>
+              <p>Image sizes to use when rendering nodes with <code>image</code> attributes.</p>
+
+              <p>For example, to indicate to Graphviz that the image <code>test.png</code> has size 300x200:</p>
+              
+              <pre><code>viz.render("graph { a[image=\"test.png\"] }", {
+  images: [
+    { name: "test.png", width: 300, height: 200 }
+  ]
+});
+</pre></code>
+            </dd>
           </dl>
         </dd>
         
@@ -489,6 +503,38 @@ <h4>Attributes, Subgraphs, HTML Labels</h4>
             </dd>
           </dl>
         </dd>
+
+        <dt id="viz.ImageSize"><code><b><a href="#viz.ImageSize">ImageSize</a></b></code></dt>
+        <dd>
+          <p>Specifies the size of an image used as a node's <code>image</code> attribute.</p>
+          
+          <p><a href="#viz.ImageSize.width">width</a> and <a href="#viz.ImageSize.height">height</a> may be specified as numbers or strings with units: in, px, pc, pt, cm, or mm. If no units are given or measurements are given as numbers, points (pt) are used.</p>
+
+          <dl>
+            <dt id="viz.ImageSize.name"><code><b><a href="#viz.ImageSize.name">name</a></b>: string</code></dt>
+            <dd>
+              <p>The name of the image. In addition to filenames, names that look like absolute filesystem paths or URLs can be used.</p>
+              
+              <ul>
+                <li><code>"example.png"</code></li>
+                <li><code>"/images/example.png"</code></li>
+                <li><code>"http://example.com/image.png"</code></li>
+              </ul>
+              
+              <p>Names that look like relative filesystem paths, such as <code>"../example.png"</code>, are not supported.</p>
+            </dd>
+
+            <dt id="viz.ImageSize.width"><code><b><a href="#viz.ImageSize.width">width</a></b>: string | number</code></dt>
+            <dd>
+              <p>The width of the image.</p>
+            </dd>
+
+            <dt id="viz.ImageSize.height"><code><b><a href="#viz.ImageSize.height">height</a></b>: string | number</code></dt>
+            <dd>
+              <p>The height of the image.</p>
+            </dd>
+          </dl>
+        </dd>
       </dl>
     </section>
   </main>