压缩使用itext创建的pdf文件 [英] zip a pdf file created using itext
本文介绍了压缩使用itext创建的pdf文件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
response.setHeader("Content-Disposition", "attachment; filename=r.pdf");
Document document1 = new Document(PageSize.A4);
PdfWriter pdfWriter=PdfWriter.getInstance(document1, response.getOutputStream());
pdfWriter.setPageEvent(new HeaderAndFooter(name));
try{
document1.open();
XMLWorkerHelper worker1 = XMLWorkerHelper.getInstance();
long seed =123;
Random rnd = new Random (seed);
Collections.shuffle(arrlist1,rnd);
for(int i=0;i<nb;i++){
String str =(String) arrlist1.get(i);
worker1.parseXHtml(pdfWriter, document1, new StringReader(str));
}
}catch(Exception e){e.printStackTrace();}
document1.close();
pdfWriter.flush();
pdfWriter.close();
multi.finish();
%>
我在创建pdf页面的地方有此代码,我想知道如何压缩它? 我在some1的帖子
I have this code where a pdf page is created,I would like to know how to zip it?? I found this code on some1's post
var zip = new JSZip();
zip.file("Hello.txt", "Hello World\n");
var img = zip.folder("images");
img.file("smile.gif", imgData, {base64: true});
var content = zip.generate();
location.href="data:application/zip;base64,"+content;
但是不知道如何将其应用于我的?
but dont know how to apply it to mine?
推荐答案
在ZipOutputStream中创建pdf,而不是response.getOutputStream().
Create the pdf in ZipOutputStream instead of response.getOutputStream().
示例:
OutputStream servletOutputStream =response.getOutputStream();
ZipOutputStream zos = new ZipOutputStream(servletOutputStream);
ZipEntry entry = new ZipEntry("sample.pdf");
zos.putNextEntry(entry);
Document document1 = new Document(PageSize.A4);
PdfWriter pdfWriter=PdfWriter.getInstance(document1, zos.getOutputStream());
pdfWriter.setPageEvent(new HeaderAndFooter(name));
这篇关于压缩使用itext创建的pdf文件的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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