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+# Guide - Setup HedgeDoc S3 image upload
+
+**Note:** *This guide was written before the renaming. Just replace `HackMD` with `HedgeDoc` in your mind :smile: thanks!*
+
+1. Go to [AWS S3 console](https://console.aws.amazon.com/s3/home) and create a new bucket.
+   ![create-bucket](../images/s3-image-upload/create-bucket.png)
+
+2. Click on bucket, select **Properties**  on the side panel, and find **Permission** section. Click **Edit bucket policy**.
+   ![bucket-property](../images/s3-image-upload/bucket-property.png)
+
+3. Enter the following policy, replace `bucket_name` with your bucket name:
+   ![bucket-policy-editor](../images/s3-image-upload/bucket-policy-editor.png)
+
+    ```json
+    {
+        "Version": "2012-10-17",
+        "Statement": [
+            {
+                "Effect": "Allow",
+                "Principal": "*",
+                "Action": "s3:GetObject",
+                "Resource": "arn:aws:s3:::bucket_name/uploads/*"
+            }
+        ]
+    }
+    ```
+
+4. Go to IAM console and create a new IAM user. Remember your user credentials(`key`/`access token`)
+
+5. Enter user page, select **Permission** tab, look at **Inline Policies** section, and click **Create User Policy**
+   ![iam-user](../images/s3-image-upload/iam-user.png)
+
+6. Select **Custom Policy**
+   ![custom-policy](../images/s3-image-upload/custom-policy.png)
+
+7. Enter the following policy, replace `bucket_name` with your bucket name:
+   ![review-policy](../images/s3-image-upload/review-policy.png)
+
+    ```json
+    {
+        "Version": "2012-10-17",
+        "Statement": [
+            {
+                "Effect": "Allow",
+                "Action": [
+                    "s3:*"
+                ],
+                "Resource": [
+                    "arn:aws:s3:::bucket_name/uploads/*"
+                ]
+            }
+        ]
+    }
+    ```
+
+8. Edit `config.json` and set following keys:
+
+   ```javascript
+   {
+     "production": {
+       ...
+       "imageuploadtype": "s3",
+       "s3": {
+         "accessKeyId": "YOUR_S3_ACCESS_KEY_ID",
+         "secretAccessKey": "YOUR_S3_ACCESS_KEY",
+         "region": "YOUR_S3_REGION" // example: ap-northeast-1
+       },
+       "s3bucket": "YOUR_S3_BUCKET_NAME"
+     }
+   }
+   ```
+
+9. In additional to edit `config.json` directly, you could also try [environment variables](../configuration.md).
+
+## Related Tools
+
+- [AWS Policy Generator](http://awspolicygen.s3.amazonaws.com/policygen.html)