diff --git a/packages/api/src/schema.ts b/packages/api/src/schema.ts
index de3f5209c..9bfe8406b 100755
--- a/packages/api/src/schema.ts
+++ b/packages/api/src/schema.ts
@@ -543,7 +543,8 @@ const schema = gql`
     title: String!
     byline: String
     dir: String
-    content: String!
+    # max length of 10MB
+    content: String! @sanitize(maxLength: 10485760)
     textContent: String!
     length: Int!
     excerpt: String!
@@ -559,7 +560,8 @@ const schema = gql`
     source: String!
     clientRequestId: ID!
     title: String
-    originalContent: String!
+    # max length of 10MB
+    originalContent: String! @sanitize(maxLength: 10485760)
     parseResult: ParseResult
     state: ArticleSavingRequestStatus
     labels: [CreateLabelInput!]
diff --git a/packages/api/src/services/library_item.ts b/packages/api/src/services/library_item.ts
index 8dab74fc5..e662ecb69 100644
--- a/packages/api/src/services/library_item.ts
+++ b/packages/api/src/services/library_item.ts
@@ -431,7 +431,13 @@ export const updateLibraryItem = async (
 
   await pubsub.entityUpdated<QueryDeepPartialEntity<LibraryItem>>(
     EntityType.PAGE,
-    { ...libraryItem, id },
+    {
+      ...libraryItem,
+      id,
+      // don't send original content and readable content
+      originalContent: undefined,
+      readableContent: undefined,
+    },
     userId
   )
 
@@ -535,9 +541,14 @@ export const createLibraryItem = async (
     userId
   )
 
-  await pubsub.entityCreated<LibraryItem>(
+  await pubsub.entityCreated<DeepPartial<LibraryItem>>(
     EntityType.PAGE,
-    newLibraryItem,
+    {
+      ...newLibraryItem,
+      // don't send original content and readable content
+      originalContent: undefined,
+      readableContent: undefined,
+    },
     userId
   )