Assembly for the alignment of at least one document of value (12 to 18) along a transport path, having at least one banknote reader, which has at least one scanner line with a large number of detection areas (D1, D2) along the scanner line for scanning the document of value (12 to 18), wherein each detection area (D1, D2) is designed to scan a scanning area (A1, A2) in the transport plane of the transport path, wherein the scanning areas (A1, A2) are arranged along a line orthogonal to a central axis of the transport path, having a first transport element (212, 214, 216) and having at least one second transport element (218, 220, 222) for transporting the document of value (12 to 18) along the transport path in at least one transport direction, wherein the transport elements (212 to 222) each contact the document of value (12 to 18) in a contact area (K1 to K4), having at least one alignment device for aligning the document of value (12 to 18), which is arranged between the first transport element (212, 214, 216) and the second transport element (218, 220, 222) and which forms a section of the transport path, wherein the banknote reader is arranged upstream of the alignment device in the transport direction, characterized in that the banknote reader is designed to detect the trailing edge of the document of value (12 to 18) in a first scanning area and in a second scanning area, in that the first scanning area on a first side of the central axis has the same lateral spacing (x) from the central axis of the transport path as the contact area of the second transport element (218, 220, 222), in that the second scanning area on a second side of the central axis, opposite to the first side, has the same lateral spacing (x) from the central axis of the transport path as the contact area of the second transport element (218, 220, 222), and in that a control unit is designed, beginning with the detection of the exit of the trailing edge of the document of value (12 to 18) from the first scanning area and from the second scanning area, to control and/or to monitor the transport of the document of value (12 to 18) in the transport direction and the alignment device in such a way that the alignment device begins the alignment process at the earliest after the document of value (12 to 18) has been transported in the transport direction by a preset first distance. having at least one banknote reader, which has at least one scanner line with a large number of detection areas (D1, D2) along the scanner line for scanning the document of value (12 to 18), wherein each detection area (D1, D2) is designed to scan a scanning area (A1, A2) in the transport plane of the transport path, wherein the scanning areas (A1, A2) are arranged along a line orthogonal to a central axis of the transport path, having a first transport element (212, 214, 216) and having at least one second transport element (218, 220, 222) for transporting the document of value (12 to 18) along the transport path in at least one transport direction, wherein the transport elements (212 to 222) each contact the document of value (12 to 18) in a contact area (K1 to K4), having at least one alignment device for aligning the document of value (12 to 18), which is arranged between the first transport element (212, 214, 216) and the second transport element (218, 220, 222) and which forms a section of the transport path, wherein the banknote reader is arranged upstream of the alignment device in the transport direction, characterized in that the banknote reader is designed to detect the trailing edge of the document of value (12 to 18) in a first scanning area and in a second scanning area, in that the first scanning area on a first side of the central axis has the same lateral spacing (x) from the central axis of the transport path as the contact area of the second transport element (218, 220, 222), in that the second scanning area on a second side of the central axis, opposite to the first side, has the same lateral spacing (x) from the central axis of the transport path as the contact area of the second transport element (218, 220, 222), and in that a control unit is designed, beginning with the detection of the exit of the trailing edge of the document of value (12 to 18) from the first scanning area and from the second scanning area, to control and/or to monitor the transport of the document of value (12 to 18) in the transport direction and the alignment device in such a way that the alignment device begins the alignment process at the earliest after the document of value (12 to 18) has been transported in the transport direction by a preset first distance.