Jupyter notebooks are great while the work is still changing. They are less forgiving when the output has to become a PDF that someone else can review, archive, or attach to a report. Most export problems are not caused by one broken command. They usually come from small mismatches between notebook state, output size, browser rendering, LaTeX dependencies, image paths, and what the reviewer expects to read. This is the checklist I use before turning a notebook into a PDF report. 1. Restart and run the notebook before exporting A notebook can look correct because old cell outputs are still saved in the file. That does not mean it is reproducible. Before exporting, restart the kernel and run all cells from the top.…