Sometimes the text that we are trying to search is converted to graphic. Hence, it'll not be considered as searchable text. If it is not converted into graphic and still unsearchable, follow the steps below and upload the issue again:
- Select the text box>Right Click>Select Modify.
- Uncheck the 'Convert to Graphic on Export' option.
- Click OK.
Note: - When you apply interactivity on the text box then it automatically gets converted into Graphic on Export.