diff --git a/inc/inc.ConversionInit.php b/inc/inc.ConversionInit.php
index 908b71f33..1acb3d12a 100644
--- a/inc/inc.ConversionInit.php
+++ b/inc/inc.ConversionInit.php
@@ -26,6 +26,8 @@ $conversionmgr->addService(new SeedDMS_ConversionServicePdfToImage('application/
 $conversionmgr->addService(new SeedDMS_ConversionServiceImageToImage('image/jpeg', 'image/png'))->setLogger($logger);
 $conversionmgr->addService(new SeedDMS_ConversionServiceImageToImage('image/png', 'image/png'))->setLogger($logger);
 $conversionmgr->addService(new SeedDMS_ConversionServiceImageToImage('image/jpg', 'image/png'))->setLogger($logger);
+$conversionmgr->addService(new SeedDMS_ConversionServiceImageToImage('image/gif', 'image/png'))->setLogger($logger);
+$conversionmgr->addService(new SeedDMS_ConversionServiceImageToImage('image/tiff', 'image/png'))->setLogger($logger);
 $conversionmgr->addService(new SeedDMS_ConversionServiceImageToImage('image/svg+xml', 'image/png'))->setLogger($logger);
 
 $conversionmgr->addService(new SeedDMS_ConversionServiceTextToText('text/plain', 'text/plain'))->setLogger($logger);