Grails renderPdf with pssword protection

问题

Does anyone know how to apply a password on renderPdf (org.grails.plugins:rendering:2.0.3) on Grails 3.0.8? I have tried googled but not result.

回答1:

In order to password-protect your PDF-files you have to use the lower level stuff, like:

  import org.xhtmlrenderer.pdf.*

  void renderEncPdf( String url, out ){
    def enc = new PDFEncryption( 'userPassword'.bytes, 'ownerPassword'.bytes )

    ITextRenderer renderer
    try{
      renderer = new ITextRenderer()
      renderer.setPDFEncryption enc
      renderer.setDocument url
      renderer.layout()
      renderer.createPDF out
    }catch( Throwable e ){
      log.error e
    }finally{
      renderer.finishPDF()
    }
  }

the url should be the absolute url of your GSP-view you use for generation.

For this I didn't use any plugin (as the documentation is missing now), it's a simple itext dependency. It should be also possible to hook in with rendering plugin somehow

来源：https://stackoverflow.com/questions/38971634/grails-renderpdf-with-pssword-protection