WINSOFT components and applications

PDF Library for Android

FAQ

Why does the exception "java.io.FileNotFoundException: open failed: EACCESS (Permission denied)" occur when opening an existing PDF file?

This exception typically indicates that your application does not have the required permission to access external storage.

uses System.Permissions, Androidapi.JNI.Os, ...
...
  PermissionsService.RequestPermissions(
    [JStringToString(TJManifest_permission.JavaClass.READ_EXTERNAL_STORAGE)],
    procedure(const APermissions: TArray; const AGrantResults: TArray)
    var PermissionGranted: Boolean;
    begin
      PermissionGranted := (Length(AGrantResults) = 1) and
                           (AGrantResults[0] = TPermissionStatus.Granted);
      ...
    end);
...
							

How can I specify the page size when creating a new PDF page?

You can set the desired page size by passing a predefined constant from the TPdfPageSize enumeration when adding a new page:

Page := Document.AddPage(TPdfPageSize.A4);
							

How can I change the page size of an existing PDF page?

You can modify the page size by setting the MediaBox property to a predefined value from the TPdfPageSize enumeration:

Page.MediaBox := TPdfPageSize.A4;
							

How can I retrieve text from a PDF document?

You can extract the text content of a PDF document using the Text property of the Document object:

Text := Document.Text;
							

What files should be deployed to the Android device?

All files located in the Library\assets folder must be deployed to the Android device. When deploying, ensure that the Remote Path is correctly set to the corresponding assets\... location to match the folder structure expected by the application.

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