Multipage pdf to series of pngs with transparency
8. 9. 2025pdftocairo is part of the poppler-utils package.
pdftocairo -png -transp -scale-to 2048 in.pdf out
Larger of width or height will be scaled to 2048px.
Output will be series of png’s, like:
out-01.png
out-02.png
out-03.png
...