Simulink SLX to PDF

A PDF of a Simulink model is what people ask for when the reader does not have MATLAB: a lab report or thesis appendix, a design review with a manager or customer, a supplier sharing a reference design, a handover document, or simply printing the model to mark it up by hand. Inside Simulink this takes the print dialog for every subsystem one at a time, or a Report Generator licence, and it cannot be done at all on a machine without Simulink.

This page builds the whole document in one go. Each view gets its own A4 landscape page with the full path printed at the top, such as cruise_control / Vehicle / Engine, so a reader can follow the hierarchy on paper. The diagram is scaled to fill the page without cropping, at a resolution that stays sharp when zoomed or printed. Pages follow the model's own order: the top level first, then each subsystem followed by the subsystems and charts inside it.

Stateflow charts are drawn as state diagrams with their conditions on the arrows, and MATLAB Function blocks print their code, so the PDF shows the logic as well as the wiring. If you only need one diagram, the PNG is drawn at twice the screen size for slides, and the SVG is vector art that stays crisp at any size in a report. The Block list (CSV) button adds a spreadsheet of every block, its type, its library and its settings, which is handy for checking parameters or writing a bill of blocks.

Large models are fine. A model with hundreds of subsystems turns into a PDF of hundreds of pages, and the page counts them as it goes so you can see progress. The browser stays responsive while it works because the model is read in a background worker.

The PDF is made on your computer. The model is read in this tab and the finished file is handed to your browser as a download, with nothing sent to TaskNinja, no account and no record of file names or contents.

The PDF shows the model as saved, not simulation results. Custom mask pictures, blocks from libraries outside the file and protected models are shown as labelled boxes, and fonts are simpler than in Simulink, so small text may sit slightly differently from the original.