通过itextsharp阻止pdf文件的打印 [英] Block Printing of pdf file through itextsharp

问题描述

请引导我，

我如何使用itextsharp dll

Please Guide Me,

How can i create a pdf file that can not be print on printer, using itextsharp dll

推荐答案

创建无法在打印机上打印的pdf文件，我认为您是在谈论制作无法打印的安全PDF.但这只是没有用.我有很多无法通过Adobe打印的PDF，但是如果您在浏览器(即chrome或任何其他浏览器)中将其打开并打印，它将可以使用.因此，我建议您放弃这个想法.

I think you are talking about making a secured PDF which cannot be printed. But that is just useless. I have many PDF which cannot be printed through adobe, but if you open it in browser (i.e. chrome or any) and print it, it will work. So, I would suggest to leave the idea.

U可以使用此代码锁定pdf进行打印.

U can use this code to lock the pdf for print.

System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();
writer.SetEncryption(null, encoding.GetBytes("our cod of lock"), PdfWriter.ALLOW_COPY, PdfWriter.STRENGTH40BITS);

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