Import & Export PDF & Word Doc SwiftUI - pdf

Question

I was not able to import or export PDF nor .doc documents to my app. This code below saves selected pdf inside iCloud or phone memory but when I try to view the pdf file it always converts to a document with only text "Hello World".
I guess I need to change allowedContentTypes in .fileImporter and contentType inside .fileExporter but after some research I could not find working example on the web.
#State private var document: MessageDocument = MessageDocument(message: "Hello, World!")
.fileImporter(
isPresented: $isImporting,
allowedContentTypes: [UTType.pdf],
allowsMultipleSelection: false
) { result in
do {
guard let selectedFile: URL = try result.get().first else { return }
//trying to get access to url contents
if (CFURLStartAccessingSecurityScopedResource(selectedFile as CFURL)) {
guard let message = String(data: try Data(contentsOf: selectedFile), encoding: .utf8) else { return }
document.message = message
//done accessing the url
CFURLStopAccessingSecurityScopedResource(selectedFile as CFURL)
}
else {
print("Permission error!")
}
} catch {
// Handle failure.
print(error.localizedDescription)
}
}
.fileExporter(
isPresented: $isExporting,
document: document,
contentType: UTType.data,
defaultFilename: "Message"
) { result in
if case .success = result {
// Handle success.
} else {
// Handle failure.
}
}
}
}
MessageDocument
import SwiftUI
import UniformTypeIdentifiers
struct MessageDocument: FileDocument {
static var readableContentTypes: [UTType] { [.plainText] }
var message: String
init(message: String) {
self.message = message
}
init(configuration: ReadConfiguration) throws {
guard let data = configuration.file.regularFileContents,
let string = String(data: data, encoding: .utf8)
else {
throw CocoaError(.fileReadCorruptFile)
}
message = string
}
func fileWrapper(configuration: WriteConfiguration) throws -> FileWrapper {
return FileWrapper(regularFileWithContents: message.data(using: .utf8)!)
}
}