diff --git a/jest.config.js b/jest.config.js
index 79f41a3a4..7a9d65cbf 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -24,7 +24,9 @@ module.exports = {
       },
     ],
   },
-  transformIgnorePatterns: ['node_modules/(?!.*\\.mjs$|@ngxs|@angular|@ngrx|parse5|entities|chart.js)'],
+  transformIgnorePatterns: [
+    'node_modules/(?!.*\\.mjs$|@ngxs|@angular|@ngrx|parse5|entities|chart.js|@mdit|@citation-js|@traptitech|@sentry|@primeng|@newrelic)',
+  ],
   testEnvironment: 'jsdom',
   moduleFileExtensions: ['ts', 'js', 'html', 'json', 'mjs'],
   coverageDirectory: 'coverage',
diff --git a/package-lock.json b/package-lock.json
index 9699293ab..451780058 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "osf",
-  "version": "25.2.0",
+  "version": "25.3.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "osf",
-      "version": "25.2.0",
+      "version": "25.3.0",
       "dependencies": {
         "@angular/animations": "^19.2.0",
         "@angular/cdk": "^19.2.1",
@@ -20,6 +20,7 @@
         "@citation-js/core": "^0.7.18",
         "@citation-js/plugin-csl": "^0.7.18",
         "@fortawesome/fontawesome-free": "^6.7.2",
+        "@mdit/plugin-img-size": "0.22.3",
         "@newrelic/browser-agent": "^1.301.0",
         "@ngx-translate/core": "^16.0.4",
         "@ngx-translate/http-loader": "^16.0.1",
@@ -5958,6 +5959,26 @@
         "win32"
       ]
     },
+    "node_modules/@mdit/plugin-img-size": {
+      "version": "0.22.3",
+      "resolved": "https://registry.npmjs.org/@mdit/plugin-img-size/-/plugin-img-size-0.22.3.tgz",
+      "integrity": "sha512-dd2coSTYi5rDg+dIQYgIcHlLvE4C6Q7w8GQj5mdvHF0aek46V6PICZC9tQnPe+GcKKyAg5B1MGBo1+suJVXA5A==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/markdown-it": "^14.1.2"
+      },
+      "engines": {
+        "node": ">= 18"
+      },
+      "peerDependencies": {
+        "markdown-it": "^14.1.0"
+      },
+      "peerDependenciesMeta": {
+        "markdown-it": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@msgpackr-extract/msgpackr-extract-darwin-arm64": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/@msgpackr-extract/msgpackr-extract-darwin-arm64/-/msgpackr-extract-darwin-arm64-3.0.3.tgz",
@@ -8190,14 +8211,12 @@
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/@types/linkify-it/-/linkify-it-5.0.0.tgz",
       "integrity": "sha512-sVDA58zAw4eWAffKOaQH5/5j3XeayukzDk+ewSsnv3p4yJEZHCCzMDiZM8e0OUrRvmpGZ85jf4yDHkHsgBNr9Q==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/@types/markdown-it": {
       "version": "14.1.2",
       "resolved": "https://registry.npmjs.org/@types/markdown-it/-/markdown-it-14.1.2.tgz",
       "integrity": "sha512-promo4eFwuiW+TfGxhi+0x3czqTYJkG8qB17ZUJiVF10Xm7NLVRSLUsfRTU/6h1e24VvRnXCx+hG7li58lkzog==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@types/linkify-it": "^5",
@@ -8208,7 +8227,6 @@
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/@types/mdurl/-/mdurl-2.0.0.tgz",
       "integrity": "sha512-RGdgjQUZba5p6QEFAVx2OGb8rQDL/cPRG7GiedRzMcJ1tYnUANBncjbSB1NRGwbvjcPeikRABz2nshyPk1bhWg==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/@types/mime": {
diff --git a/package.json b/package.json
index 30c9c6215..528289352 100644
--- a/package.json
+++ b/package.json
@@ -44,6 +44,7 @@
     "@citation-js/core": "^0.7.18",
     "@citation-js/plugin-csl": "^0.7.18",
     "@fortawesome/fontawesome-free": "^6.7.2",
+    "@mdit/plugin-img-size": "0.22.3",
     "@newrelic/browser-agent": "^1.301.0",
     "@ngx-translate/core": "^16.0.4",
     "@ngx-translate/http-loader": "^16.0.1",
diff --git a/src/app/shared/components/markdown/markdown.component.ts b/src/app/shared/components/markdown/markdown.component.ts
index b8944388e..648f6e53b 100644
--- a/src/app/shared/components/markdown/markdown.component.ts
+++ b/src/app/shared/components/markdown/markdown.component.ts
@@ -1,6 +1,7 @@
 import { ChangeDetectionStrategy, Component, computed, inject, input, Signal } from '@angular/core';
 import { DomSanitizer, SafeHtml } from '@angular/platform-browser';
 
+import { legacyImgSize } from '@mdit/plugin-img-size';
 import markdownItKatex from '@traptitech/markdown-it-katex';
 import MarkdownIt from 'markdown-it';
 import markdownItVideo from 'markdown-it-video';
@@ -37,6 +38,7 @@ export class MarkdownComponent {
       .use(markdownItKatex, {
         output: 'mathml',
         throwOnError: false,
-      });
+      })
+      .use(legacyImgSize);
   }
 }
diff --git a/src/styles/components/md-editor.scss b/src/styles/components/md-editor.scss
index 21e6e9978..3fa75b6b7 100644
--- a/src/styles/components/md-editor.scss
+++ b/src/styles/components/md-editor.scss
@@ -97,7 +97,13 @@
         list-style-type: decimal;
       }
     }
+
+    img {
+      max-width: 100%;
+      height: auto;
+    }
   }
+
   .md-footer {
     display: none;
   }