diff --git a/TelegramUI.xcodeproj/project.pbxproj b/TelegramUI.xcodeproj/project.pbxproj
index 554bd987bb..b552b91e82 100644
--- a/TelegramUI.xcodeproj/project.pbxproj
+++ b/TelegramUI.xcodeproj/project.pbxproj
@@ -127,6 +127,7 @@
 		9F06830921A404AB001D8EDB /* NotificationExceptionControllerNode.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F06830821A404AB001D8EDB /* NotificationExceptionControllerNode.swift */; };
 		9F06830B21A404C4001D8EDB /* NotificationExcetionSettingsController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F06830A21A404C4001D8EDB /* NotificationExcetionSettingsController.swift */; };
 		D000CABA21EE130D0011B15D /* MapResourceToAvatarSizes.swift in Sources */ = {isa = PBXBuildFile; fileRef = D000CAB921EE130D0011B15D /* MapResourceToAvatarSizes.swift */; };
+		D000CABC21F158AD0011B15D /* PrepareSecretThumbnailData.swift in Sources */ = {isa = PBXBuildFile; fileRef = D000CABB21F158AD0011B15D /* PrepareSecretThumbnailData.swift */; };
 		D005808B21CAB8F000CB7CD3 /* VoipDerivedState.swift in Sources */ = {isa = PBXBuildFile; fileRef = D005808A21CAB8F000CB7CD3 /* VoipDerivedState.swift */; };
 		D00580A021DCF0A200CB7CD3 /* WallpaperListPreviewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D005809F21DCF0A200CB7CD3 /* WallpaperListPreviewController.swift */; };
 		D00580A221DCF0B700CB7CD3 /* WallpaperListPreviewControllerNode.swift in Sources */ = {isa = PBXBuildFile; fileRef = D00580A121DCF0B700CB7CD3 /* WallpaperListPreviewControllerNode.swift */; };
@@ -1259,6 +1260,7 @@
 		9F06830821A404AB001D8EDB /* NotificationExceptionControllerNode.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NotificationExceptionControllerNode.swift; sourceTree = "<group>"; };
 		9F06830A21A404C4001D8EDB /* NotificationExcetionSettingsController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NotificationExcetionSettingsController.swift; sourceTree = "<group>"; };
 		D000CAB921EE130D0011B15D /* MapResourceToAvatarSizes.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MapResourceToAvatarSizes.swift; sourceTree = "<group>"; };
+		D000CABB21F158AD0011B15D /* PrepareSecretThumbnailData.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PrepareSecretThumbnailData.swift; sourceTree = "<group>"; };
 		D00219051DDD1C9E00BE708A /* ImageContainingNode.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ImageContainingNode.swift; sourceTree = "<group>"; };
 		D002A0D01E9B99F500A81812 /* SoftwareVideoSource.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SoftwareVideoSource.swift; sourceTree = "<group>"; };
 		D002A0D21E9BBE6700A81812 /* MultiplexedSoftwareVideoSourceManager.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = MultiplexedSoftwareVideoSourceManager.swift; sourceTree = "<group>"; };
@@ -4765,6 +4767,7 @@
 				099529B321D3E5D800805E13 /* CheckDiskSpace.swift */,
 				09DD5D4F21ECC3C400D7007A /* SuppressContactsWarning.swift */,
 				D000CAB921EE130D0011B15D /* MapResourceToAvatarSizes.swift */,
+				D000CABB21F158AD0011B15D /* PrepareSecretThumbnailData.swift */,
 			);
 			name = Utils;
 			sourceTree = "<group>";
@@ -5847,6 +5850,7 @@
 				D0EC6E051EB9F58900EBF1C3 /* SecretMediaPreviewControllerNode.swift in Sources */,
 				D007019C2029E8F2006B9E34 /* LegqacyICloudFileController.swift in Sources */,
 				0902838D2194AEB90067EFBD /* ImageTransparency.swift in Sources */,
+				D000CABC21F158AD0011B15D /* PrepareSecretThumbnailData.swift in Sources */,
 				D0208AD61FA33D14001F0D5F /* RaiseToListenActivator.m in Sources */,
 				D0EC6E061EB9F58900EBF1C3 /* ChatDocumentGalleryItem.swift in Sources */,
 				D0EC6E071EB9F58900EBF1C3 /* ChatExternalFileGalleryItem.swift in Sources */,
diff --git a/TelegramUI/PrepareSecretThumbnailData.swift b/TelegramUI/PrepareSecretThumbnailData.swift
new file mode 100644
index 0000000000..3596734267
--- /dev/null
+++ b/TelegramUI/PrepareSecretThumbnailData.swift
@@ -0,0 +1,19 @@
+import Foundation
+import UIKit
+import Postbox
+import Display
+
+func prepareSecretThumbnailData(_ data: MediaResourceData) -> (CGSize, Data)? {
+    if data.complete, let image = UIImage(contentsOfFile: data.path) {
+        if image.size.width < 100 && image.size.height < 100 {
+            if let resultData = try? Data(contentsOf: URL(fileURLWithPath: data.path)) {
+                return (image.size, resultData)
+            }
+        }
+        let scaledSize = image.size.fitted(CGSize(width: 90.0, height: 90.0))
+        if let scaledImage = generateScaledImage(image: image, size: scaledSize, scale: 1.0), let scaledData = UIImageJPEGRepresentation(scaledImage, 0.4) {
+            return (scaledSize, scaledData)
+        }
+    }
+    return nil
+}
diff --git a/TelegramUI/TelegramAccountAuxiliaryMethods.swift b/TelegramUI/TelegramAccountAuxiliaryMethods.swift
index fe6ca478b3..14fd8d24aa 100644
--- a/TelegramUI/TelegramAccountAuxiliaryMethods.swift
+++ b/TelegramUI/TelegramAccountAuxiliaryMethods.swift
@@ -36,4 +36,6 @@ public let telegramAccountAuxiliaryMethods = AccountAuxiliaryMethods(updatePeerC
         return fetchVideoLibraryMediaResourceHash(resource: resource)
     }
     return .single(nil)
+}, prepareSecretThumbnailData: { data in
+    return prepareSecretThumbnailData(data)
 })