[How to Crop entire photo to specific size]

It worked perfectly, thank you again.

[How to Crop entire photo to specific size]

Thank you so much. I will starting looking at things a little differently now. Not expecting things to behave as they did in Photo Shop just because they have the same name. 

[How to Crop entire photo to specific size]

I am new to Affinity but have worked with Photo Shop of many years for my own personal project nothing super fancy.  The issue I am having is I cannot figure out how to crop the entire photo to a specific size.  I think I have tried everything under the Crop tool but just can't figure it out.  I want to open a photo and crop it to 6X4. But when I stretch the grid to incorporate the entire photo it increases the size back to the original size.  I totally don't understand.  Is there a beginner book?  I have the Affinity Photo Workbook but it is to general on most subjects.