When you place a PDF in Indesign, if you select "Show Import Options," you will get a dialog that lets you choose what box Indesign will crop the PDF to.
The bleed is added when exporting in the "Marks and Bleeds" category, and if you set bleeds and turn off marks, you'll get a PDF that is exactly the size of trim plus bleeds without any marks.
The bleed is added when exporting in the "Marks and Bleeds" category, and if you set bleeds and turn off marks, you'll get a PDF that is exactly the size of trim plus bleeds without any marks.