Guides

Remove Password

Removing the password means the user with owner privileges removes the user password and owner password, allowing the document to be opened without a password and granting full access by default.

The steps to remove a password:

1. Open the document using the CPDFReaderView component.
2. Unlock the document and gain full privileges.
3. Remove the password from the unlocked document.

The following example demonstrates how to remove a password:

const CPDFReaderViewExampleScreen = () => {

  const pdfReaderRef = useRef<CPDFReaderView>(null);

  const [samplePDF] = useState(
    (Platform.OS === 'android'
     ? 'file:///android_asset/PDF_Document.pdf'
     : 'PDF_Document.pdf')
  );

  return (
    <View style={{ flex: 1 }}>
      <Button title='Remove Password' onPress={async () => {

          var document = pdfReaderRef.current?._pdfDocument;
          const removeResult = await document?.removePassword();

        }}></Button>
      <CPDFReaderView
        ref={pdfReaderRef}
        document={samplePDF}
        configuration={ComPDFKit.getDefaultConfig({
          toolbarConfig: {
            mainToolbarVisible: true,
            iosLeftBarAvailableActions: [
              CPDFToolbarAction.THUMBNAIL
            ]
          }
        })}
        />
    </View>
  );
};

Check if the Document is Encrypted:

var document = pdfReaderRef.current?._pdfDocument;
const isEncrypted = await document?.isEncrypted()

Get Document Permission Status:

var document = pdfReaderRef.current?._pdfDocument;
const permissions = await document?.getPermissions();

Permission Status Explanation:

Permission Status	Description	Enum Value
No Permissions	No permissions applied to the document	CPDFDocumentPermissions.NONE
User Permissions	Document opened with user password, some operations may be restricted	CPDFDocumentPermissions.USER
Owner Permissions	Document opened with owner password, no restrictions	CPDFDocumentPermissions.OWNER

Check Owner Permissions:

var document = pdfReaderRef.current?._pdfDocument;
// Check if the document is unlocked with owner privileges
const unlocked = await document?.checkOwnerUnlocked()

// Check if the owner password is correct
const result = await document?.checkOwnerPassword('4321')