Regenerate a PDF file form ServletInputStream.

[bruno <bruno (at) lowagie.com>]

AnhTuan Nguyen wrote:

> The PDF form is submitted to Tomcat server with PDF format, and i used 
> the ServletInputStream (javax.servlet. to gererate the PDF file 
> from PDF client. This is my code:
>  
> protected void doPost(HttpServletRequest request, HttpServletResponse 
> response)
>    throws ServletException, IOException {
>    PrintFDF(request, response, "POST");
>  }

I assume that this is a typo.
Either you should call makePdf,
or the name of the method below should be PrintPDF.

>  public void makePdf(HttpServletRequest request, HttpServletResponse 
> response, String methodGetPost)
>   throws ServletException, IOException {
>   try {
>    File tempFile = new File("c:\\test.pdf");
>       FileOutputStream fout = new FileOutputStream(tempFile);
>       BufferedInputStream bin = new 
> BufferedInputStream(request.getInputStream());
>       BufferedOutputStream bout = new BufferedOutputStream(fout);
>       byte[] buf = new byte[8 * 1024];
>       int len;
>       while ((len = bin.read(buf)) > -1) {
>           bout.write(buf, 0, len);
>       }
>       bout.close();
>       bin.close();
>   } catch (Exception e2) {    }
>  }
> The result file (test.pdf) is different with the original file in size 
> and version.

If I understand well, the end user has a file, for instance form.pdf.
He may or may not fill in fields.
Then he clicks on a button that submits form.pdf as PDF.

Why do you think the file that is received on the server side
should have the same size??? That's an incorrect assumption.

I think you will even see file differences that depend on the
version of Adobe Reader that was used to submit the PDF.
br,
Bruno


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