Get the format family and the additional information Leave feedback

A format family is a group of several file types for which an application provides additional information. For example, archive files (.7z, .rar, .zip, etc.) or Outlook files (.ost, .pst) are format families.

You can get the format family and the additional information using the get_view_info method that returns a ViewInfo object.

GroupDocs.Viewer provides additional information for the following format families:

• Archive files - a collection of folders in the archive (see Obtain information about folders in an archive file);
• CAD drawings - a collection of layouts and layers (see Obtain information about existing layouts and layers);
• Outlook data files - a collection of folders (see Obtain information about folders in an Outlook data file);
• PDF documents - a flag that indicates whether document printing is allowed (see Obtain information about a PDF file);
• Microsoft Project files - the project’s start and end dates (see Obtain information about a Project file).

The following code snippet shows how to get the file type and the pages count from a file:

from typing import cast
from groupdocs.viewer import Viewer
from groupdocs.viewer.options import ViewInfoOptions
from groupdocs.viewer.results import PdfViewInfo

def get_file_type_and_pages_count():
    # Load PDF document
    with Viewer("sample.pdf") as viewer:
        options = ViewInfoOptions.for_html_view() 
        info = viewer.get_view_info(options)
        pdf_info = cast(PdfViewInfo, info)

        print("Document type is:", pdf_info.file_type)
        print("Pages count:", len(pdf_info.pages))

        print("\nView info retrieved successfully.")

if __name__ == "__main__":
    get_file_type_and_pages_count()

The following image shows a sample console output: