diff --git a/packages/client/src/types/files/utils.ts b/packages/client/src/types/files/utils.ts
index 1f9029a4..734cb26c 100644
--- a/packages/client/src/types/files/utils.ts
+++ b/packages/client/src/types/files/utils.ts
@@ -3,6 +3,7 @@ import type { Readable } from 'stream'
 import type { ReadStream } from 'fs'
 import { UploadedFile } from './uploaded-file'
 import { FileLocation } from './file-location'
+import { tdFileId } from '@mtcute/file-id'
 
 /**
  * Describes types that can be used in {@link TelegramClient.uploadFile}
@@ -26,11 +27,27 @@ export type UploadFileLike =
  * Describes types that can be used as an input
  * to any methods that send media (like {@link TelegramClient.sendPhoto})
  *
- * In addition to all the types available in {@link UploadFileLike}, you
- * can also pass {@link UploadedFile} returned from {@link TelegramClient.uploadFile},
- * raw `tl.TypeInputFile` and URLs to remote files
+ * Can be one of:
+ *  - `Buffer`, which will be interpreted as raw file contents
+ *  - `File` (from the Web API)
+ *  - `ReadStream` (for NodeJS, from the `fs` module)
+ *  - `ReadableStream` (from the Web API, base readable stream)
+ *  - `Readable` (for NodeJS, base readable stream)
+ *  - {@link UploadedFile} returned from {@link TelegramClient.uploadFile}
+ *  - `tl.TypeInputFile` and `tl.TypeInputMedia` TL objects
+ *  - `string` with a URL to remote files (e.g. `https://example.com/image.jpg`)
+ *  - `string` with TDLib and Bot API compatible File ID.
+ *  - `td.RawFullRemoteFileLocation` (parsed File ID)
+ *
+ *  > **Note**: Unlike {@link UploadFileLike}, you can't pass
+ *  > a file path directly. Use `fs.createReadStream('/path/to/file.png')`
  */
-export type InputFileLike = UploadFileLike | UploadedFile | tl.TypeInputFile | tl.TypeInputMedia
+export type InputFileLike =
+    | UploadFileLike
+    | UploadedFile
+    | tl.TypeInputFile
+    | tl.TypeInputMedia
+    | tdFileId.RawFullRemoteFileLocation
 
 export interface FileDownloadParameters {
     /**
diff --git a/packages/client/src/types/media/audio.ts b/packages/client/src/types/media/audio.ts
index 4b6b2c95..7b13cdaf 100644
--- a/packages/client/src/types/media/audio.ts
+++ b/packages/client/src/types/media/audio.ts
@@ -2,6 +2,7 @@ import { tl } from '@mtcute/tl'
 import { TelegramClient } from '../../client'
 import { RawDocument } from './document'
 import { makeInspectable } from '../utils'
+import { tdFileId } from '@mtcute/file-id'
 
 /**
  * An audio file
@@ -10,6 +11,10 @@ export class Audio extends RawDocument {
     readonly doc: tl.RawDocument
     readonly attr: tl.RawDocumentAttributeAudio
 
+    protected _fileIdType(): tdFileId.FileType {
+        return tdFileId.FileType.Audio
+    }
+
     constructor(
         client: TelegramClient,
         doc: tl.RawDocument,
diff --git a/packages/client/src/types/media/document.ts b/packages/client/src/types/media/document.ts
index 90610106..a3f5b60e 100644
--- a/packages/client/src/types/media/document.ts
+++ b/packages/client/src/types/media/document.ts
@@ -4,6 +4,7 @@ import { Thumbnail } from './thumbnail'
 import { TelegramClient } from '../../client'
 import { makeInspectable } from '../utils'
 import { InputMediaLike } from './input-media'
+import { tdFileId as td, toFileId, toUniqueFileId } from '@mtcute/file-id'
 
 /**
  * A file that is represented as a document in MTProto.
@@ -124,6 +125,47 @@ export class RawDocument extends FileLocation {
             // other fields are not needed since it's a forwarded media
         }
     }
+
+    protected _fileIdType(): td.FileType {
+        return td.FileType.Document
+    }
+
+    protected _fileId?: string
+    /**
+     * Get TDLib and Bot API compatible File ID
+     * representing this document.
+     */
+    get fileId(): string {
+        if (!this._fileId) {
+            this._fileId = toFileId({
+                type: this._fileIdType(),
+                dcId: this.doc.dcId,
+                fileReference: this.doc.fileReference,
+                location: {
+                    _: 'common',
+                    id: this.doc.id,
+                    accessHash: this.doc.accessHash,
+                },
+            })
+        }
+
+        return this._fileId
+    }
+
+    protected _uniqueFileId?: string
+    /**
+     * Get a unique File ID representing this document.
+     */
+    get uniqueFileId(): string {
+        if (!this._uniqueFileId) {
+            this._uniqueFileId = toUniqueFileId(td.FileType.Document, {
+                _: 'common',
+                id: this.doc.id,
+            })
+        }
+
+        return this._uniqueFileId
+    }
 }
 
 /**
diff --git a/packages/client/src/types/media/input-media.ts b/packages/client/src/types/media/input-media.ts
index 64cea9f3..fcd2dd28 100644
--- a/packages/client/src/types/media/input-media.ts
+++ b/packages/client/src/types/media/input-media.ts
@@ -260,7 +260,8 @@ export namespace InputMedia {
      * Create a document to be sent, which subtype
      * is inferred automatically by file contents.
      *
-     * **Does not** infer photos, they will be sent as simple files.
+     * Only infers photos from the File ID, otherwise
+     * photos will be sent as documents.
      */
     export function auto(
         file: InputFileLike,
diff --git a/packages/client/src/types/media/sticker.ts b/packages/client/src/types/media/sticker.ts
index 2a5ca39b..df65f663 100644
--- a/packages/client/src/types/media/sticker.ts
+++ b/packages/client/src/types/media/sticker.ts
@@ -3,6 +3,7 @@ import { TelegramClient } from '../../client'
 import { tl } from '@mtcute/tl'
 import { makeInspectable } from '../utils'
 import { StickerSet } from '../misc'
+import { tdFileId } from '@mtcute/file-id'
 
 /**
  * A sticker
@@ -11,6 +12,10 @@ export class Sticker extends RawDocument {
     readonly attr: tl.RawDocumentAttributeSticker
     readonly attrSize?: tl.RawDocumentAttributeImageSize
 
+    protected _fileIdType(): tdFileId.FileType {
+        return tdFileId.FileType.Sticker
+    }
+
     constructor(
         client: TelegramClient,
         doc: tl.RawDocument,
diff --git a/packages/client/src/types/media/video.ts b/packages/client/src/types/media/video.ts
index e92ab02f..e1c4bcad 100644
--- a/packages/client/src/types/media/video.ts
+++ b/packages/client/src/types/media/video.ts
@@ -2,6 +2,7 @@ import { RawDocument } from './document'
 import { tl } from '@mtcute/tl'
 import { TelegramClient } from '../../client'
 import { makeInspectable } from '../utils'
+import { tdFileId } from '@mtcute/file-id'
 
 /**
  * A video, round video message or GIF animation.
@@ -13,6 +14,14 @@ export class Video extends RawDocument {
         | tl.RawDocumentAttributeVideo
         | tl.RawDocumentAttributeImageSize
 
+    protected _fileIdType(): tdFileId.FileType {
+        return this.isRound
+            ? tdFileId.FileType.VideoNote
+            : this.isAnimation
+            ? tdFileId.FileType.Animation
+            : tdFileId.FileType.Video
+    }
+
     constructor(
         client: TelegramClient,
         doc: tl.RawDocument,
diff --git a/packages/client/src/types/media/voice.ts b/packages/client/src/types/media/voice.ts
index 93374a8f..553e6b04 100644
--- a/packages/client/src/types/media/voice.ts
+++ b/packages/client/src/types/media/voice.ts
@@ -2,6 +2,7 @@ import { RawDocument } from './document'
 import { tl } from '@mtcute/tl'
 import { TelegramClient } from '../../client'
 import { makeInspectable } from '../utils'
+import { tdFileId } from '@mtcute/file-id'
 
 /**
  * An voice note.
@@ -10,6 +11,10 @@ export class Voice extends RawDocument {
     readonly doc: tl.RawDocument
     readonly attr: tl.RawDocumentAttributeAudio
 
+    protected _fileIdType(): tdFileId.FileType {
+        return tdFileId.FileType.VoiceNote
+    }
+
     constructor(
         client: TelegramClient,
         doc: tl.RawDocument,