diff --git a/src/main/resources/messages_en_US.properties b/src/main/resources/messages_en_US.properties
index 8f9ac848..b1b05e24 100644
--- a/src/main/resources/messages_en_US.properties
+++ b/src/main/resources/messages_en_US.properties
@@ -524,8 +524,8 @@ merge.submit=Merge
 
 
 #pdfOrganiser
-pdfOrganiser.title=Page Organiser
-pdfOrganiser.header=PDF Page Organiser
+pdfOrganiser.title=Page Organizer
+pdfOrganiser.header=PDF Page Organizer
 pdfOrganiser.submit=Rearrange Pages
 
 
@@ -581,9 +581,9 @@ pdfToImage.selectText=Image Format
 pdfToImage.singleOrMultiple=Image result type
 pdfToImage.single=Single Big Image
 pdfToImage.multi=Multiple Images
-pdfToImage.colorType=Colour type
-pdfToImage.color=Colour
-pdfToImage.grey=Greyscale
+pdfToImage.colorType=Color type
+pdfToImage.color=Color
+pdfToImage.grey=Grayscale
 pdfToImage.blackwhite=Black and White (May lose data!)
 pdfToImage.submit=Convert