diff --git a/docs/api/browser-window.md b/docs/api/browser-window.md
index a8d43cd293..05fbf1bff2 100644
--- a/docs/api/browser-window.md
+++ b/docs/api/browser-window.md
@@ -966,32 +966,10 @@ Same as `webContents.capturePage([rect, ]callback)`.
 
 * `url` String
 * `options` Object (optional)
-  * `httpReferrer` String (optional) - A HTTP Referrer url.
-  * `userAgent` String (optional) - A user agent originating the request.
-  * `extraHeaders` String (optional) - Extra headers separated by "\n"
-  * `postData` Array (optional) - An array of `upload` objects which
-    provides the request body for `POST` navigation.
-
-* `upload` Object
-  * `type` String - `data`, `file`, `filsSystem`, `blob`.
-
-If `type` is `data` then `upload` object must contain:
-  * `bytes` Buffer - Raw data to be uploaded.
-
-If `type` is `file` then `upload` object must contain:
-  * `filePath` String - Path of file to be uploaded.
-  * `offset` Integer
-  * `length` Integer
-  * `modificationTime` Double
-
-If `type` is `fileSystem` then `upload` object must contain:
-  * `filsSystemURL` String - FileSystem url to read data for upload.
-  * `offset` Integer
-  * `length` Integer
-  * `modificationTime` Double
-
-If `type` is `blob` then `upload` object must contain:
-  * `blobUUID` String - UUID of blob data to upload.
+  * `httpReferrer` String - A HTTP Referrer url.
+  * `userAgent` String - A user agent originating the request.
+  * `extraHeaders` String - Extra headers separated by "\n"
+  * `postData` ([UploadData](structures/upload-data.md) | [UploadFile](structures/upload-file.md) | [UploadFileSystem](structures/upload-file-system.md) | [UploadBlob](structures/upload-blob.md))[]
 
 Same as `webContents.loadURL(url[, options])`.
 
diff --git a/docs/api/structures/upload-blob.md b/docs/api/structures/upload-blob.md
new file mode 100644
index 0000000000..5cd6c15ef5
--- /dev/null
+++ b/docs/api/structures/upload-blob.md
@@ -0,0 +1,4 @@
+# Upload blob Object
+
+* `type` String - `blob`.
+* `blobUUID` String - UUID of blob data to upload.
diff --git a/docs/api/structures/upload-file-system.md b/docs/api/structures/upload-file-system.md
new file mode 100644
index 0000000000..1e59ade617
--- /dev/null
+++ b/docs/api/structures/upload-file-system.md
@@ -0,0 +1,9 @@
+# Upload fileSystem Object
+
+* `type` String - `fileSystem`.
+* `filsSystemURL` String - FileSystem url to read data for upload.
+* `offset` Integer - Defaults to `0`.
+* `length` Integer - Number of bytes to read from `offset`.
+  Defaults to `0`.
+* `modificationTime` Double - Last Modification time in
+  number of seconds sine the UNIX epoch.
diff --git a/docs/api/structures/upload-file.md b/docs/api/structures/upload-file.md
new file mode 100644
index 0000000000..5f5ea67dd1
--- /dev/null
+++ b/docs/api/structures/upload-file.md
@@ -0,0 +1,9 @@
+# Upload file Object
+
+* `type` String - `file`.
+* `filePath` String - Path of file to be uploaded.
+* `offset` Integer - Defaults to `0`.
+* `length` Integer - Number of bytes to read from `offset`.
+  Defaults to `0`.
+* `modificationTime` Double - Last Modification time in
+  number of seconds sine the UNIX epoch.
diff --git a/docs/api/web-contents.md b/docs/api/web-contents.md
index d122587cc6..fc3fec3baf 100644
--- a/docs/api/web-contents.md
+++ b/docs/api/web-contents.md
@@ -490,29 +490,7 @@ win.loadURL('http://github.com')
   * `httpReferrer` String - A HTTP Referrer url.
   * `userAgent` String - A user agent originating the request.
   * `extraHeaders` String - Extra headers separated by "\n"
-  * `postData` Array - An array of `upload` objects which
-    provides the request body for `POST` navigation.
-
-* `upload` Object
-  * `type` String - `data`, `file`, `filsSystem`, `blob`.
-
-If `type` is `data` then `upload` object must contain:
-  * `bytes` Buffer - Raw data to be uploaded.
-
-If `type` is `file` then `upload` object must contain:
-  * `filePath` String - Path of file to be uploaded.
-  * `offset` Integer
-  * `length` Integer
-  * `modificationTime` Double
-
-If `type` is `fileSystem` then `upload` object must contain:
-  * `filsSystemURL` String - FileSystem url to read data for upload.
-  * `offset` Integer
-  * `length` Integer
-  * `modificationTime` Double
-
-If `type` is `blob` then `upload` object must contain:
-  * `blobUUID` String - UUID of blob data to upload.
+  * `postData` ([UploadData](structures/upload-data.md) | [UploadFile](structures/upload-file.md) | [UploadFileSystem](structures/upload-file-system.md) | [UploadBlob](structures/upload-blob.md))[]
 
 Loads the `url` in the window. The `url` must contain the protocol prefix,
 e.g. the `http://` or `file://`. If the load should bypass http cache then
diff --git a/docs/api/web-view-tag.md b/docs/api/web-view-tag.md
index f9e47f0c38..592eb5907e 100644
--- a/docs/api/web-view-tag.md
+++ b/docs/api/web-view-tag.md
@@ -265,29 +265,7 @@ webview.addEventListener('dom-ready', () => {
   * `httpReferrer` String - A HTTP Referrer url.
   * `userAgent` String - A user agent originating the request.
   * `extraHeaders` String - Extra headers separated by "\n"
-  * `postData` Array - An array of `upload` objects which
-    provides the request body for `POST` navigation.
-
-* `upload` Object
-  * `type` String - `data`, `file`, `filsSystem`, `blob`.
-
-If `type` is `data` then `upload` object must contain:
-  * `bytes` Buffer - Raw data to be uploaded.
-
-If `type` is `file` then `upload` object must contain:
-  * `filePath` String - Path of file to be uploaded.
-  * `offset` Integer
-  * `length` Integer
-  * `modificationTime` Double
-
-If `type` is `fileSystem` then `upload` object must contain:
-  * `filsSystemURL` String - FileSystem url to read data for upload.
-  * `offset` Integer
-  * `length` Integer
-  * `modificationTime` Double
-
-If `type` is `blob` then `upload` object must contain:
-  * `blobUUID` String - UUID of blob data to upload.
+  * `postData` ([UploadData](structures/upload-data.md) | [UploadFile](structures/upload-file.md) | [UploadFileSystem](structures/upload-file-system.md) | [UploadBlob](structures/upload-blob.md))[]
 
 Loads the `url` in the webview, the `url` must contain the protocol prefix,
 e.g. the `http://` or `file://`.