System.InvalidOperationException: PDF operations require the pdfium library, which could not be loaded. Install it with: sudo apt-get install libpdfium0
 ---> System.Exception: Could not load library: "libpdfium.so.0". Error: 
   at IntPtr NAPS2.Unmanaged.NativeLibrary.DoLoadLibrary(string path)
   at NAPS2.Unmanaged.NativeLibrary(string libraryPath, string[] depPaths)+() => { }
   at void System.Lazy<T>.ViaFactory(LazyThreadSafetyMode mode)
   at void System.Lazy<T>.ExecutionAndPublication(LazyHelper executionAndPublication, bool useDefaultConstructor)
   at T System.Lazy<T>.CreateValue()
   at T System.Lazy<T>.get_Value()
   at IntPtr NAPS2.Unmanaged.NativeLibrary.get_LibraryHandle()
   at IntPtr NAPS2.Unmanaged.NativeLibrary.LoadFunc<T>()
   at T NAPS2.Unmanaged.NativeLibrary.Load<T>()+() => { }
   at TValue NAPS2.Util.CollectionExtensions.Get<TKey, TValue>(Dictionary<TKey, TValue> dict, TKey key, Func<TValue> defaultValue)
   at T NAPS2.Unmanaged.NativeLibrary.Load<T>()
   at FPDF_InitLibrary_delegate NAPS2.Pdf.Pdfium.PdfiumNativeLibrary.get_FPDF_InitLibrary()
   at static NAPS2.Pdf.Pdfium.PdfiumNativeLibrary()+() => { }
   at void System.Lazy<T>.ViaFactory(LazyThreadSafetyMode mode)
   at void System.Lazy<T>.ExecutionAndPublication(LazyHelper executionAndPublication, bool useDefaultConstructor)
   at T System.Lazy<T>.CreateValue()
   at T System.Lazy<T>.get_Value()
   at PdfiumNativeLibrary NAPS2.Pdf.Pdfium.PdfiumNativeLibrary.get_Instance()
   at void NAPS2.Pdf.Pdfium.PdfiumNativeLibrary.EnsureLoaded()
   --- End of inner exception stack trace ---
   at void NAPS2.Pdf.Pdfium.PdfiumNativeLibrary.EnsureLoaded()
   at IAsyncEnumerable<ProcessedImage> NAPS2.Pdf.PdfImporter.Import(InputPathOrStream input, ImportParams importParams, ProgressHandler progress)
   at IAsyncEnumerable<ProcessedImage> NAPS2.ImportExport.FileImporter.Import(InputPathOrStream input, ImportParams importParams, ProgressHandler progress, bool skipUnsupported) x 2
   at async bool NAPS2.ImportExport.ImportOperation.Start(List<string> filesToImport, Action<ProcessedImage> imageCallback, ImportParams importParams)+(?) => { }