diff --git a/indiekit.config.js b/indiekit.config.js
index f52f728df..291ba0998 100644
--- a/indiekit.config.js
+++ b/indiekit.config.js
@@ -38,6 +38,15 @@ const config = {
           published: { required: true },
         },
       },
+      photo: {
+        media: {
+          resize: {
+            width: 100,
+            height: 50,
+            fit: "fill",
+          },
+        },
+      },
       jam: {
         name: "Jam",
         post: {
diff --git a/package-lock.json b/package-lock.json
index 83b919f35..2d55de759 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18360,7 +18360,8 @@
         "@indiekit/util": "^1.0.0-beta.6",
         "express": "^4.17.1",
         "file-type": "^19.0.0",
-        "newbase60": "^1.3.1"
+        "newbase60": "^1.3.1",
+        "sharp": "^0.33.2"
       },
       "engines": {
         "node": ">=20"
diff --git a/packages/endpoint-media/lib/controllers/action.js b/packages/endpoint-media/lib/controllers/action.js
index 9d55a83fb..83867fa8d 100644
--- a/packages/endpoint-media/lib/controllers/action.js
+++ b/packages/endpoint-media/lib/controllers/action.js
@@ -1,6 +1,7 @@
 import { IndiekitError } from "@indiekit/error";
 import { mediaContent } from "../media-content.js";
 import { mediaData } from "../media-data.js";
+import { mediaTransform } from "../media-transform.js";
 import { checkScope } from "../scope.js";
 
 /**
@@ -25,6 +26,7 @@ export const actionController = async (request, response, next) => {
     }
 
     let data;
+    let file;
     let content;
     switch (action) {
       case "media": {
@@ -35,8 +37,10 @@ export const actionController = async (request, response, next) => {
           );
         }
 
-        data = await mediaData.create(application, publication, files.file);
-        content = await mediaContent.upload(publication, data, files.file);
+        file = await mediaTransform(publication, files.file);
+
+        data = await mediaData.create(application, publication, file);
+        content = await mediaContent.upload(publication, data, file);
         break;
       }
 
diff --git a/packages/endpoint-media/lib/media-transform.js b/packages/endpoint-media/lib/media-transform.js
new file mode 100644
index 000000000..28956c188
--- /dev/null
+++ b/packages/endpoint-media/lib/media-transform.js
@@ -0,0 +1,22 @@
+import sharp from "sharp";
+import { getMediaType } from "./file.js";
+
+/**
+ * Apply media transformation
+ * @param {object} publication - Publication configuration
+ * @param {object} file - File
+ * @returns {Promise<object>} Media file
+ */
+export const mediaTransform = async (publication, file) => {
+  const { postTypes } = publication;
+
+  const type = await getMediaType(file);
+
+  const typeConfig = postTypes[type];
+
+  const { resize } = typeConfig.media;
+
+  file.data = await sharp(file.data).resize(resize).toBuffer();
+
+  return file;
+};
diff --git a/packages/endpoint-media/package.json b/packages/endpoint-media/package.json
index 6fa4249bb..d9c0a4701 100644
--- a/packages/endpoint-media/package.json
+++ b/packages/endpoint-media/package.json
@@ -37,7 +37,8 @@
     "@indiekit/util": "^1.0.0-beta.6",
     "express": "^4.17.1",
     "file-type": "^19.0.0",
-    "newbase60": "^1.3.1"
+    "newbase60": "^1.3.1",
+    "sharp": "^0.33.2"
   },
   "publishConfig": {
     "access": "public"