diff --git a/CHANGELOG.md b/CHANGELOG.md
index e80f2f6b00..a11a3fa8db 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,7 @@
     * New fields `ExtendedChannelChat#linkedGroupChatId` and `ExtendedSupergroupChat#linkedChannelChatId`
     * New fields `ExtendedSupergroupChat#location`
     * New fields `AudioFile#fileName` and `VideoFile#fileName`
+    * New fields `SendDocument#disableContentTypeDetection` and `InputMediaDocument#disableContentTypeDetection`
 
 ## 0.29.4
 
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/media/SendDocument.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/media/SendDocument.kt
index 0b2db11bf8..961d512dc6 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/media/SendDocument.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/media/SendDocument.kt
@@ -14,6 +14,15 @@ import dev.inmo.tgbotapi.utils.mapOfNotNull
 import dev.inmo.tgbotapi.utils.throwRangeError
 import kotlinx.serialization.*
 
+/**
+ * Use this method to send general files. On success, the sent [ContentMessage] with [DocumentContent] is returned.
+ * Bots can currently send files of any type of up to 50 MB in size, this limit may be changed in the future.
+ *
+ * @param disableContentTypeDetection Disables automatic server-side content type detection for [document] [MultipartFile]
+ *
+ * @see ContentMessage
+ * @see DocumentContent
+ */
 fun SendDocument(
     chatId: ChatIdentifier,
     document: InputFile,
@@ -22,7 +31,8 @@ fun SendDocument(
     parseMode: ParseMode? = null,
     disableNotification: Boolean = false,
     replyToMessageId: MessageIdentifier? = null,
-    replyMarkup: KeyboardMarkup? = null
+    replyMarkup: KeyboardMarkup? = null,
+    disableContentTypeDetection: Boolean? = null
 ): Request<ContentMessage<DocumentContent>> {
     val documentAsFileId = (document as? FileId) ?.fileId
     val documentAsFile = document as? MultipartFile
@@ -37,7 +47,8 @@ fun SendDocument(
         parseMode,
         disableNotification,
         replyToMessageId,
-        replyMarkup
+        replyMarkup,
+        disableContentTypeDetection
     )
 
     return if (documentAsFile == null && thumbAsFile == null) {
@@ -53,6 +64,15 @@ fun SendDocument(
 private val commonResultDeserializer: DeserializationStrategy<ContentMessage<DocumentContent>>
     = TelegramBotAPIMessageDeserializationStrategyClass()
 
+/**
+ * Use this method to send general files. On success, the sent [ContentMessage] with [DocumentContent] is returned.
+ * Bots can currently send files of any type of up to 50 MB in size, this limit may be changed in the future.
+ *
+ * @param disableContentTypeDetection Disables automatic server-side content type detection for [document] [MultipartFile]
+ *
+ * @see ContentMessage
+ * @see DocumentContent
+ */
 @Serializable
 data class SendDocumentData internal constructor(
     @SerialName(chatIdField)
@@ -70,7 +90,9 @@ data class SendDocumentData internal constructor(
     @SerialName(replyToMessageIdField)
     override val replyToMessageId: MessageIdentifier? = null,
     @SerialName(replyMarkupField)
-    override val replyMarkup: KeyboardMarkup? = null
+    override val replyMarkup: KeyboardMarkup? = null,
+    @SerialName(disableContentTypeDetectionField)
+    val disableContentTypeDetection: Boolean? = null
 ) : DataRequest<ContentMessage<DocumentContent>>,
     SendMessageRequest<ContentMessage<DocumentContent>>,
     ReplyingMarkupSendMessageRequest<ContentMessage<DocumentContent>>,
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/Common.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/Common.kt
index 3957c733d5..f56da81409 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/Common.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/Common.kt
@@ -86,6 +86,7 @@ const val disableWebPagePreviewField = "disable_web_page_preview"
 const val disableNotificationField = "disable_notification"
 const val replyToMessageIdField = "reply_to_message_id"
 const val replyMarkupField = "reply_markup"
+const val disableContentTypeDetectionField = "disable_content_type_detection"
 const val supportStreamingField = "support_streaming"
 const val livePeriodField = "live_period"
 const val isBotField = "is_bot"
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/InputMedia/InputMediaDocument.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/InputMedia/InputMediaDocument.kt
index 465b630c6a..a0fa37b7c0 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/InputMedia/InputMediaDocument.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/InputMedia/InputMediaDocument.kt
@@ -4,19 +4,32 @@ import dev.inmo.tgbotapi.CommonAbstracts.CaptionedOutput
 import dev.inmo.tgbotapi.requests.abstracts.*
 import dev.inmo.tgbotapi.types.ParseMode.ParseMode
 import dev.inmo.tgbotapi.types.ParseMode.parseModeField
+import dev.inmo.tgbotapi.types.disableContentTypeDetectionField
 import dev.inmo.tgbotapi.types.files.DocumentFile
 import dev.inmo.tgbotapi.types.mediaField
 import kotlinx.serialization.*
 
 internal const val documentInputMediaType = "document"
 
+/**
+ * Represents a general file to be sent. See https://core.telegram.org/bots/api#inputmediadocument
+ *
+ * @param disableContentTypeDetection Disables automatic server-side content type detection for files uploaded using
+ * multipart/form-data. Always used by Telegram system as true, if the document is sent as part of an album.
+ *
+ * @see InputFile
+ * @see MultipartFile
+ * @see FileId
+ */
 @Serializable
 data class InputMediaDocument(
     override val file: InputFile,
     override val caption: String? = null,
     @SerialName(parseModeField)
     override val parseMode: ParseMode? = null,
-    override val thumb: InputFile? = null
+    override val thumb: InputFile? = null,
+    @SerialName(disableContentTypeDetectionField)
+    val disableContentTypeDetection: Boolean? = null
 ) : InputMedia, DocumentMediaGroupMemberInputMedia, ThumbedInputMedia, CaptionedOutput {
     override val type: String = documentInputMediaType