diff --git a/services/thumbnails/pkg/errors/error.go b/services/thumbnails/pkg/errors/error.go
index e8bbe30889..c411130ce5 100644
--- a/services/thumbnails/pkg/errors/error.go
+++ b/services/thumbnails/pkg/errors/error.go
@@ -11,6 +11,8 @@ var (
 	ErrNoEncoderForType = errors.New("thumbnails: no encoder for this type found")
 	// ErrNoImageFromAudioFile defines an error when an image cannot be extracted from an audio file
 	ErrNoImageFromAudioFile = errors.New("thumbnails: could not extract image from audio file")
+	// ErrNoConverterForExtractedImageFromGgsFile defines an error when the extracted image from an ggs file could not be converted
+	ErrNoConverterForExtractedImageFromGgsFile = errors.New("thumbnails: could not find converter for image extracted from ggs file")
 	// ErrNoConverterForExtractedImageFromAudioFile defines an error when the extracted image from an audio file could not be converted
 	ErrNoConverterForExtractedImageFromAudioFile = errors.New("thumbnails: could not find converter for image extracted from audio file")
 	// ErrCS3AuthorizationMissing defines an error when the CS3 authorization is missing
diff --git a/services/thumbnails/pkg/preprocessor/preprocessor.go b/services/thumbnails/pkg/preprocessor/preprocessor.go
index d4626b11e2..1733dcf835 100644
--- a/services/thumbnails/pkg/preprocessor/preprocessor.go
+++ b/services/thumbnails/pkg/preprocessor/preprocessor.go
@@ -12,7 +12,6 @@ import (
 	"mime"
 	"strings"
 
-	"github.com/kovidgoyal/imaging"
 	"github.com/pkg/errors"
 	"golang.org/x/image/font"
 	"golang.org/x/image/font/opentype"
@@ -60,8 +59,11 @@ func (g GgsDecoder) Convert(r io.Reader) (interface{}, error) {
 			if err != nil {
 				return nil, err
 			}
-
-			img, err := imaging.Decode(thumbnail, imaging.AutoOrientation(true))
+			converter := ForType("image/png", nil)
+			if converter == nil {
+				return nil, thumbnailerErrors.ErrNoConverterForExtractedImageFromGgsFile
+			}
+			img, err := converter.Convert(thumbnail)
 			if err != nil {
 				return nil, errors.Wrap(err, `could not decode the image`)
 			}