diff --git a/src/common/exif.cc b/src/common/exif.cc
index b18d4869879c..b2a676359dd9 100644
--- a/src/common/exif.cc
+++ b/src/common/exif.cc
@@ -1057,14 +1057,16 @@ int dt_exif_write_blob(uint8_t *blob, uint32_t size, const char *path, const int
     Exiv2::ExifData blobExifData;
     Exiv2::ExifParser::decode(blobExifData, blob + 6, size);
     Exiv2::ExifData::const_iterator end = blobExifData.end();
+    Exiv2::ExifData::iterator it;
     for(Exiv2::ExifData::const_iterator i = blobExifData.begin(); i != end; ++i)
     {
+      // add() does not override! we need to delete existing key first.
       Exiv2::ExifKey key(i->key());
-      if(imgExifData.findKey(key) == imgExifData.end())
-        imgExifData.add(Exiv2::ExifKey(i->key()), &i->value());
+      if((it = imgExifData.findKey(key)) != imgExifData.end()) imgExifData.erase(it);
+
+      imgExifData.add(Exiv2::ExifKey(i->key()), &i->value());
     }
     // Remove thumbnail
-    Exiv2::ExifData::iterator it;
     if((it = imgExifData.findKey(Exiv2::ExifKey("Exif.Thumbnail.Compression"))) != imgExifData.end())
       imgExifData.erase(it);
     if((it = imgExifData.findKey(Exiv2::ExifKey("Exif.Thumbnail.XResolution"))) != imgExifData.end())
@@ -1114,8 +1116,6 @@ int dt_exif_read_blob(uint8_t *buf, const char *path, const int imgid, const int
     assert(image.get() != 0);
     image->readMetadata();
     Exiv2::ExifData &exifData = image->exifData();
-    // needs to be reset, even in dng mode, as the buffers are flipped during raw import
-    exifData["Exif.Image.Orientation"] = uint16_t(1);
 
     // get rid of thumbnails
     Exiv2::ExifThumb(exifData).erase();
@@ -1154,6 +1154,8 @@ int dt_exif_read_blob(uint8_t *buf, const char *path, const int imgid, const int
     {
       /* Delete various MakerNote fields only applicable to the raw file */
 
+      exifData["Exif.Image.Orientation"] = uint16_t(1);
+
       // Canon color space info
       if((pos = exifData.findKey(Exiv2::ExifKey("Exif.Canon.ColorSpace"))) != exifData.end())
         exifData.erase(pos);
diff --git a/src/common/imageio.c b/src/common/imageio.c
index 3efc67010f64..cef222585fe1 100644
--- a/src/common/imageio.c
+++ b/src/common/imageio.c
@@ -663,13 +663,16 @@ int dt_imageio_export_with_flags(const uint32_t imgid, const char *filename,
                              buf.pre_monochrome_demosaiced);
   dt_dev_pixelpipe_create_nodes(&pipe, &dev);
   dt_dev_pixelpipe_synch_all(&pipe, &dev);
-  dt_dev_pixelpipe_get_dimensions(&pipe, &dev, pipe.iwidth, pipe.iheight, &pipe.processed_width,
-                                  &pipe.processed_height);
+
   if(filter)
   {
     if(!strncmp(filter, "pre:", 4)) dt_dev_pixelpipe_disable_after(&pipe, filter + 4);
     if(!strncmp(filter, "post:", 5)) dt_dev_pixelpipe_disable_before(&pipe, filter + 5);
   }
+
+  dt_dev_pixelpipe_get_dimensions(&pipe, &dev, pipe.iwidth, pipe.iheight, &pipe.processed_width,
+                                  &pipe.processed_height);
+
   dt_show_times(&start, "[export] creating pixelpipe", NULL);
 
   // find output color profile for this image: