pdftocairo takes 20+ minutes to process this PDF
On my 12-core machine this PDF conversion takes 20+ minutes and produces a huge 127Mb PDF.
pdftocairo -pdf wojtka.pdf wojtka-out.pdf
$ time pdftocairo -pdf ./wojtka.pdf wojtka-out.pdf
Syntax Warning: Invalid Font Weight
Syntax Warning: Invalid Font Weight
Syntax Warning: Invalid Font Weight
Syntax Warning: Invalid Font Weight
Syntax Warning: Invalid Font Weight
Syntax Warning: Invalid Font Weight
real 20m46.750s
user 20m45.753s
sys 0m0.977s
Perhaps something could be done to speed it up?
cairo 1.16.0
poppler 0.61.1