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

Question

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;
}

JasperPrint is Java class. JavaScript is client side language invoked in browsers. You can't mix those two. — Shadow The GPT Wizard, Jan 24 '12 at 09:00
@ShadowWizard: if you don´t know how to do it, please don´t edit my question. Like I said I know how to do it with POI (Java too). Your comment is not constructive. Thanks. — ganzux, Jan 24 '12 at 09:04
@ganzux You can add js to pdf. See details here: http://stackoverflow.com/questions/8733276/how-to-open-print-dialog-after-pdf-generated — Alex K, Jan 24 '12 at 09:05
I only took out JavaScript tag and fixed invalid single quotes. I didn't touch your contents. — Shadow The GPT Wizard, Jan 24 '12 at 09:07
@ShadowWizard: I think the javascript tag is correct. Thanks for fix my question :) . — ganzux, Jan 24 '12 at 09:09
OK, won't fight over this. Alex gave what looks like valid answer. :) — Shadow The GPT Wizard, Jan 24 '12 at 09:15

score 0 · Answer 1 · answered Oct 07 '19 at 18:00

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;
}

This is deprecated code, see the suggested duplicated for non deprecated code and solution using jrxml — Petter Friberg, Oct 08 '19 at 17:34

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

1 Answers1

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