JasperReport: Is it possible to set Initial Zoom in PDF? [duplicate]

问题

I have a JasperPrint that is exported to PDF and it's showing embedded into a web page.

Is it possible to set the initial zoom in any way?

I know how to do it with POI (by javascript), but I don't find the way to add the JavaScript code in Jasper...

EDIT:

Thanks to the link of @ AlexK, I found the solution :)

public ByteArrayOutputStream fillPDF(JasperPrint jasperPrint) {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    try{
        JRPdfExporter exporter = new  JRPdfExporter();
        exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
        exporter.setParameter(JRPdfExporterParameter.PDF_JAVASCRIPT, "this.zoom = 70;");
        exporter.setParameter(JRPdfExporterParameter.OUTPUT_STREAM,baos); 
        exporter.exportReport(); 
    }catch (Throwable e){
    }
    return baos;
}

回答1:

The answer by @ganzux. The zoom can be set with help of JavaScript.

The expression will be: this.zoom = 70;

The snippet is:

public ByteArrayOutputStream fillPDF(JasperPrint jasperPrint) {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    try{
        JRPdfExporter exporter = new  JRPdfExporter();
        exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
        exporter.setParameter(JRPdfExporterParameter.PDF_JAVASCRIPT, "this.zoom = 70;");
        exporter.setParameter(JRPdfExporterParameter.OUTPUT_STREAM,baos); 
        exporter.exportReport(); 
    }catch (Throwable e){
    }
    return baos;
}

来源：https://stackoverflow.com/questions/8984107/jasperreport-is-it-possible-to-set-initial-zoom-in-pdf

标签

javascript

pdf-generation

jasper-reports