diff --git a/app.js b/app.js
index 872d944..004465f 100644
--- a/app.js
+++ b/app.js
@@ -123,6 +123,14 @@ const preferencesMiddleware = (req, res, next) => {
     res.cookie('highlight_controversial', highlightControversialOverride, { maxAge: 31536000, httpOnly: true })
   }
   
+  let postMediaMaxHeight = req.query.post_media_max_height
+  if(postMediaMaxHeight) {
+    if(config.post_media_max_heights.hasOwnProperty(postMediaMaxHeight) || !isNaN(postMediaMaxHeight)) {
+      req.cookies.post_media_max_height = postMediaMaxHeight
+      res.cookie('post_media_max_height', postMediaMaxHeight, { maxAge: 31536000, httpOnly: true })
+    }
+  }
+  
   next()
 }
 
diff --git a/config.js.template b/config.js.template
index a9c81c8..4c2c760 100644
--- a/config.js.template
+++ b/config.js.template
@@ -25,8 +25,19 @@ const config = {
   nsfw_enabled: process.env.NSFW_ENABLED !== 'true' || true, // Enable NSFW (over 18) content. If false, a warning is shown to the user before opening any NSFW post. When the NFSW content is disabled, NSFW posts are hidden from subreddits and from user page feeds. Note: Users can set this to true or false from their preferences.
   post_comments_sort: process.env.POST_COMMENTS_SORT || 'confidence', // "confidence" is the default sorting in Reddit. Must be one of: confidence, top, new, controversial, old, random, qa, live.
   reddit_app_id: process.env.REDDIT_APP_ID || 'ABfYqdDc9qPh1w', // If "use_reddit_oauth" config key is set to true, you have to obtain your Reddit app ID. For testing purposes it's okay to use this project's default app ID. Create your Reddit app here: https://old.reddit.com/prefs/apps/. Make sure to create an "installed app" type of app.
+  post_media_max_heights: {
+    /**
+    * Sets the max-height value for images and videos in posts.
+    * Default is 'medium'.
+    */
+    'extra-small': 300,
+    'small': 415,
+    'medium': 600,
+    'large': 850,
+    'extra-large': 1200
+  },
   setexs: {
-    /**,
+    /**
     * Redis cache expiration values (in seconds).
     * When the cache expires, new content is fetched from Reddit's API (when
     * the given URL is revisited).
diff --git a/routes.js b/routes.js
index 0e8acf0..7d8ec79 100644
--- a/routes.js
+++ b/routes.js
@@ -1129,6 +1129,7 @@ module.exports = (app, redis, fetch, RedditAPI) => {
               sortby: sortby,
               user_preferences: req.cookies,
               instance_nsfw_enabled: config.nsfw_enabled,
+              post_media_max_heights: config.post_media_max_heights,
               redis_key: comments_key
             })
           } else {
@@ -1164,6 +1165,7 @@ module.exports = (app, redis, fetch, RedditAPI) => {
                           more_comments_page: 1,
                           user_preferences: req.cookies,
                           instance_nsfw_enabled: config.nsfw_enabled,
+                          post_media_max_heights: config.post_media_max_heights,
                           redis_key: comments_key
                         })
                       })()
@@ -1204,6 +1206,7 @@ module.exports = (app, redis, fetch, RedditAPI) => {
                       sortby: sortby,
                       user_preferences: req.cookies,
                       instance_nsfw_enabled: config.nsfw_enabled,
+                      post_media_max_heights: config.post_media_max_heights,
                       redis_key: comments_key
                     })
                   })()
@@ -1431,6 +1434,7 @@ module.exports = (app, redis, fetch, RedditAPI) => {
     let flairs = req.body.flairs
     let nsfw_enabled = req.body.nsfw_enabled
     let highlight_controversial = req.body.highlight_controversial
+    let post_media_max_height = req.body.post_media_max_height
 
     res.cookie('theme', theme, { maxAge: 365 * 24 * 60 * 60 * 1000, httpOnly: true })
     
@@ -1452,6 +1456,9 @@ module.exports = (app, redis, fetch, RedditAPI) => {
       highlight_controversial = 'false'
     res.cookie('highlight_controversial', highlight_controversial, { maxAge: 365 * 24 * 60 * 60 * 1000, httpOnly: true })
 
+    if(config.post_media_max_heights.hasOwnProperty(post_media_max_height) || !isNaN(post_media_max_height))
+      res.cookie('post_media_max_height', post_media_max_height, { maxAge: 365 * 24 * 60 * 60 * 1000, httpOnly: true })
+
     return res.redirect('/preferences')
   })
   
diff --git a/views/post.pug b/views/post.pug
index 0d245f8..08ffa22 100644
--- a/views/post.pug
+++ b/views/post.pug
@@ -24,6 +24,19 @@ html
               p subreddit:
               a(href="/r/" + subreddit + "")
                 p /r/#{subreddit}
+          if user_preferences.post_media_max_height
+            if(post_media_max_heights.hasOwnProperty(user_preferences.post_media_max_height))
+              style.
+                #post .image img, #post .video video {
+                    max-height: #{post_media_max_heights[user_preferences.post_media_max_height]}px;
+                    max-width: 100%;
+                }
+            else if(!isNaN(user_preferences.post_media_max_height))
+              style.
+                #post .image img, #post .video video {
+                    max-height: #{user_preferences.post_media_max_height}px;
+                    max-width: 100%;
+                }
           .info
             .score
               div.arrow
diff --git a/views/preferences.pug b/views/preferences.pug
index fb01e4c..5431d92 100644
--- a/views/preferences.pug
+++ b/views/preferences.pug
@@ -51,6 +51,20 @@ html
                 input(type="checkbox", name="nsfw_enabled", id="nsfw_enabled")
               else
                 input(type="checkbox", name="nsfw_enabled", id="nsfw_enabled", checked="checked")
+          .setting
+            label(for="post_media_max_height") Media size in posts: 
+              select(id="post_media_max_height", name="post_media_max_height")
+                -
+                  let max_heights_html = ''
+                  let user_key = user_preferences.post_media_max_height
+                  if(!user_key || user_key == '')
+                    user_key = 'medium'
+                  
+                  for(let key in instance_config.post_media_max_heights) {
+                    if(instance_config.post_media_max_heights.hasOwnProperty(key))
+                      max_heights_html += `<option value="${key}" ${(user_key == key ? "selected" : "")}>${key}</option>`
+                  }
+                != max_heights_html
           legend Subscribed subreddits
           .setting
             details