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-rw-r--r--lib/private/preview/unknown.php8
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/private/preview/unknown.php b/lib/private/preview/unknown.php
index 62444ac6a24..4747f9e25ed 100644
--- a/lib/private/preview/unknown.php
+++ b/lib/private/preview/unknown.php
@@ -23,7 +23,15 @@ class Unknown extends Provider {
$svgPath = substr_replace($path, 'svg', -3);
if (extension_loaded('imagick') && file_exists($svgPath)) {
+
+ // http://www.php.net/manual/de/imagick.setresolution.php#85284
$svg = new \Imagick();
+ $svg->readImage($svgPath);
+ $res = $svg->getImageResolution();
+ $x_ratio = $res['x'] / $svg->getImageWidth();
+ $y_ratio = $res['y'] / $svg->getImageHeight();
+ $svg->removeImage();
+ $svg->setResolution($maxX * $x_ratio, $maxY * $y_ratio);
$svg->setBackgroundColor(new \ImagickPixel('transparent'));
$svg->readImage($svgPath);
$svg->setImageFormat('png32');