Python 3.9.0 Inkscape 0.92
I use Inkscape to convert SVG to EMF, however it takes too much time.
Simple example code
import subprocess def convert_svg_to_emf(input_svg_path, output_emf_path): # This method takes ~1 seconds subprocess.run([ "C:\\Inkscape\\Inkscape.exe", # Inkscape executor path input_svg_path, # Input SVG file "--export-emf", output_emf_path # Output EMF file ]) # Assume I have 100 files to convert for i in range(100): convert_svg_to_emf(f"svg{i}.svg", f"emf{i}.emf") # This script takes ~100 seconds Although it depends on input files, but every single call of 'convert_svg_to_emf' takes at least few seconds. But when I try converting it from Inkscape directly, a output file appears almost immediately. So I presume 'opening' and 'quitting' of the application by subprocess.run charges most processing time.
Is there any method to make this faster?
My expectation
inkscape = open_inkscape() # Keep opening Inkscape app for i in range(100): inkscape.convert_svg_to_emf(f"svg{i}.svg", f"emf{i}.emf") inkscape.quit() # Quit the app after all work done # This script conducts 'opening' and 'quitting' just once regardless of number of files. 1 Answer
Inkscape offers some commandline options. The most efficient way is to use the pipe command, or to run Inkscape in Shell Mode. From the examples:
cat my_file.svg | inkscape --pipe --export-filename=my_file.pdf 
