如何从被下载到用户的PC prevent PDF文件？ [英] How to Prevent PDF Document from Being download to users PC?

问题描述

如何从被下载到用户的PC prevent PDF文件？它可以在浏览器中查看，但不应该将文件下载到PC。

How to Prevent PDF Document from Being download to users PC? it can be viewed on browser but should not download the file to PC.

这可能吗？

推荐答案

一种选择是使PDF至JPEG或一些其他图像格式和只服务于渲染图像给用户。有些PDF库允许您呈现PDF的其他文件格式。

One option is to render the PDF to JPEG or some other image format and only serve the rendered images to the user. Some of the PDF libraries allow you to render PDF's to other file formats.

另一个选择可能是发送/通过重定向PDF到在线PDF查看应用程序以同样的方式谷歌确实在Gmail附件。这样，用户看到的PDF格式的JPEG和无法下载PDF文件。

Another option may be to send/redirect the PDF through to an online PDF viewing app in the same way Google does with attachments in GMail. That way the user sees a JPEG of the PDF and cannot download the PDF.

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