适用于PDF文件的MIME媒体类型 [英] Proper MIME media type for PDF files

问题描述

使用PDF时，我遇到了MIME类型 application / pdf 和 application / x-pdf 等等。

When working with PDFs, I've run across the MIME types application/pdf and application/x-pdf among others.

这两种类型之间是否存在差异，若然后是什么？是一个优先于另一个？

Is there a difference between these two types, and if so what is it? Is one preferred over the other?

我正在开发一个必须提供大量PDF的网络应用程序，我想以正确的方式进行，如果有的话一个。

I'm working on a web app which must deliver huge amounts of PDFs and I want to do it the correct way, if there is one.

推荐答案

标准MIME类型是 application / pdf 。该作业在 RFC 3778，the application / pdf Media Type ，引自 MIME媒体类型注册表。

The standard MIME type is application/pdf. The assignment is defined in RFC 3778, The application/pdf Media Type, referenced from the MIME Media Types registry.

MIME类型由标准组织控制，互联网号码分配机构（IANA）。这是管理根名称服务器和IP地址空间的组织。

MIME types are controlled by a standards body, The Internet Assigned Numbers Authority (IANA). This is the same organization that manages the root name servers and the IP address space.

使用 x-pdf 早于PDF的MIME类型的标准化。 x - 命名空间中的MIME类型被认为是实验性的，就像 vnd。命名空间中的MIME类型被认为是特定于供应商的。 x-pdf 可能用于与旧软件兼容。

The use of x-pdf predates the standardization of the MIME type for PDF. MIME types in the x- namespace are considered experimental, just as those in the vnd. namespace are considered vendor-specific. x-pdf might be used for compatibility with old software.

这篇关于适用于PDF文件的MIME媒体类型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！