SOURCES = $(wildcard *.tex)
PNGS = $(SOURCES:.tex=.png)
PDFS = $(SOURCES:.tex=.pdf)

png: $(PNGS)
pdf: $(PDFS)

%.pdf: %.tex
	pdflatex $<
	rm $(<:.tex=.aux) $(<:.tex=.log)

%.png: %.pdf
	convert -density 600 $< -flatten $@

.PHONY: clean
clean:
	rm -rf auto *.aux *.log *.synctex.gz

.PHONY: cleanall
cleanall: clean
	rm -rf *.png *.pdf