text: __package__ = 'archivebox.extractors'
  
  import os
  
  from typing import Optional
  
  from ..index.schema import Link, ArchiveResult, ArchiveOutput, ArchiveError
  from ..system import run, chmod_file
  from ..util import (
      enforce_types,
      is_static_file,
      chrome_args,
  )
  from ..config import (
      TIMEOUT,
      SAVE_PDF,
      CHROME_VERSION,
  )
  from ..logging_util import TimedProgress
  
  
  @enforce_types
  def should_save_pdf(link: Link, out_dir: Optional[str]=None) -> bool:
      out_dir = out_dir or link.link_dir
      if is_static_file(link.url):
          return False
      
      if os.path.exists(os.path.join(out_dir, 'output.pdf')):
          return False
  
      return SAVE_PDF
  
  
  @enforce_types
  def save_pdf(link: Link, out_dir: Optional[str]=None, timeout: int=TIMEOUT) -> ArchiveResult:
      """print PDF of site to file using chrome --headless"""
  
      out_dir = out_dir or link.link_dir
      output: ArchiveOutput = 'output.pdf'
      cmd = [
          *chrome_args(TIMEOUT=timeout),
          '--print-to-pdf',
          link.url,
      ]
      status = 'succeeded'
      timer = TimedProgress(timeout, prefix='      ')
      try:
          result = run(cmd, cwd=out_dir, timeout=timeout)
  
          if result.returncode:
              hints = (result.stderr or result.stdout).decode()
              raise ArchiveError('Failed to save PDF', hints)
          
          chmod_file('output.pdf', cwd=out_dir)
      except Exception as err:
          status = 'failed'
          output = err
      finally:
          timer.end()
  
  
      return ArchiveResult(
          cmd=cmd,
          pwd=out_dir,
          cmd_version=CHROME_VERSION,
          output=output,
          status=status,
          **timer.stats,
      )
  