Systems and methods are provided for labeling inserted pages within a print preview of a print job. The system receives print data comprising logical pages, and receives instructions for inserting pages among the logical pages of the print data. The system further receives a request for a print preview for the print data, identifies inserts for the print data based on the instructions, rasterizes the logical pages of the print data and the inserts to generate sheet images for the print preview, and includes non-printing marks in the sheet images for the inserts that distinguish the inserts from rasterized logical pages of the print data. The system further transmits the sheet images of the print preview.