diff --git a/lib/Exif.php b/lib/Exif.php
index a5879a1b..d404b467 100644
--- a/lib/Exif.php
+++ b/lib/Exif.php
@@ -26,6 +26,16 @@ class Exif {
      * @param File $file
      */
     public static function getExifFromFile(File &$file) {
+        // Borrowed from previews
+        // https://github.com/nextcloud/server/blob/19f68b3011a3c040899fb84975a28bd746bddb4b/lib/private/Preview/ProviderV2.php
+        if (!$file->isEncrypted() && $file->getStorage()->isLocal()) {
+            $path = $file->getStorage()->getLocalFile($file->getInternalPath());
+			if (is_string($path)) {
+				return self::getExifFromLocalPath($path);
+			}
+        }
+
+        // Fallback to reading as a stream
         $handle = $file->fopen('rb');
         if (!$handle) {
             throw new \Exception('Could not open file');
@@ -36,6 +46,28 @@ class Exif {
         return $exif;
     }
 
+    /** Get exif data as a JSON object from a local file path */
+    public static function getExifFromLocalPath(string $path) {
+        $pipes = [];
+        $proc = proc_open(['exiftool', '-json', $path], [
+            1 => array('pipe', 'w'),
+            2 => array('pipe', 'w'),
+        ], $pipes);
+        $stdout = stream_get_contents($pipes[1]);
+
+        // Clean up
+        fclose($pipes[1]);
+        fclose($pipes[2]);
+        proc_close($proc);
+
+        // Parse the json
+        $json = json_decode($stdout, true);
+        if (!$json) {
+            throw new \Exception('Could not read exif data');
+        }
+        return $json[0];
+    }
+
     /**
      * Get exif data as a JSON object from a stream.
      * @param resource $handle
@@ -43,15 +75,15 @@ class Exif {
     public static function getExifFromStream(&$handle) {
         // Start exiftool and output to json
         $pipes = [];
-        $proc = proc_open('exiftool -json -', [
+        $proc = proc_open(['exiftool', '-json', '-fast', '-'], [
             0 => array('pipe', 'rb'),
             1 => array('pipe', 'w'),
             2 => array('pipe', 'w'),
         ], $pipes);
 
         // Write the file to exiftool's stdin
-        // Assume exif exists in the first 256 kb of the file
-        stream_copy_to_stream($handle, $pipes[0], 256 * 1024);
+        // Warning: this is slow for big files
+        stream_copy_to_stream($handle, $pipes[0]);
         fclose($pipes[0]);
 
         // Get output from exiftool
@@ -83,7 +115,7 @@ class Exif {
 
         // Check if found something
         if (isset($dt) && !empty($dt)) {
-            $dt = \DateTime::createFromFormat('Y:m:d H:i:s', $dt);
+            $dt = \DateTime::createFromFormat('Y:m:d H:i:s', $dt, new \DateTimeZone("UTC"));
             if ($dt && $dt->getTimestamp() > -5364662400) { // 1800 A.D.
                 return $dt->getTimestamp();
             }