ghostscript

import sys import locale import ghostscript # Example 1: Convert a PostScript file to PDF using the high-level interface # This assumes 'input.ps' exists and you want 'output.pdf' # Ensure Ghostscript C library is installed and in PATH. # For Windows, you might need to specify the GS DLL path via GSAPI_LIB or GSAPI_LIBDIR env var. # Simulate command-line arguments for Ghostscript args_ps2pdf = [ "ps2pdf", # actual value doesn't matter for the python wrapper, but typically 'gs' "-dNOPAUSE", "-dBATCH", "-dSAFER", "-sDEVICE=pdfwrite", "-sOutputFile=output.pdf", "-f", "input.ps" ] try: # Ghostscript expects arguments to be byte strings in some contexts # For the high-level interface, strings are often handled, but explicit encoding can be safer encoded_args = [arg.encode(locale.getpreferredencoding()) for arg in args_ps2pdf] ghostscript.Ghostscript(*encoded_args) print("Converted input.ps to output.pdf") except ghostscript.GhostscriptError as e: print(f"Ghostscript error: {e}") except Exception as e: print(f"An unexpected error occurred: {e}") # Example 2: Process a string document directly # Documents passed to ghostscript need to be bytes doc_content = b"""%!PS /Helvetica findfont 20 scalefont setfont 50 50 moveto (Hello World from Python) show showpage quit """ args_string_to_pdf = ( "-dNOPAUSE", "-dBATCH", "-dSAFER", "-sDEVICE=pdfwrite", "-sOutputFile=hello_world.pdf", "-" # '-' indicates input from stdin ) try: with ghostscript.Ghostscript(*args_string_to_pdf) as gs: gs.run_string(doc_content) print("Generated hello_world.pdf from string content") except ghostscript.GhostscriptError as e: print(f"Ghostscript error: {e}") except Exception as e: print(f"An unexpected error occurred: {e}")