ActiveStorage::Previewer::PopplerPDFPreviewer < ActiveStorage::Previewer

# File activestorage/lib/active_storage/previewer/poppler_pdf_previewer.rb, line 6
      def accept?(blob)
        blob.content_type == "application/pdf" && pdftoppm_exists?
      end

# File activestorage/lib/active_storage/previewer/poppler_pdf_previewer.rb, line 14
      def pdftoppm_exists?
        return @pdftoppm_exists unless @pdftoppm_exists.nil?

        @pdftoppm_exists = system(pdftoppm_path, "-v", out: File::NULL, err: File::NULL)
      end

# File activestorage/lib/active_storage/previewer/poppler_pdf_previewer.rb, line 10
      def pdftoppm_path
        ActiveStorage.paths[:pdftoppm] || "pdftoppm"
      end

# File activestorage/lib/active_storage/previewer/poppler_pdf_previewer.rb, line 21
    def preview
      download_blob_to_tempfile do |input|
        draw_first_page_from input do |output|
          yield io: output, filename: "#{blob.filename.base}.png", content_type: "image/png"
        end
      end
    end