缩小以适合FOP中的图像 [英] Scale down to fit an image in FOP

问题描述

我使用FOP 1.0版来创建PDF。在其中一个页面中，我想显示一个图像（2552 x 4200像素），如果它不完全适合页面，则将其缩小。据我所见，邮件列表推荐的方法如下：

I am using FOP version 1.0 to create PDFs. In one of the pages I'd like to display an image (2552 x 4200 pixel) and scale it down if it doesn't fully fit on the page. As far as I could see on the mailing list the recommended way of doing this would be following:

<fo:external-graphic inline-progression-dimension.maximum="100%" 
                     content-height="scale-down-to-fit" 
                     content-width="scale-down-to-fit" 
                     src="..."/>

不幸的是，仍然无法显示整个图像。图像的下半部分被切掉。任何人都可以给我一个关于我可能做错的提示吗？

Unfortunately, that still doesn't display the whole image. The lower part of the image is cut off. Can anyone give me a hint on what I am potentially doing wrong?

推荐答案

我在此处发现此页面解释了如何使用XSL-FO进行扩展。

I found this page here explaining how scaling works with XSL-FO.

从本质上讲，这是我用来使其工作的片段：

Essentially, this is the snippet that I used to make it work:

<fo:external-graphic
    src="url('...')"
    width="100%"
    content-height="100%"
    content-width="scale-to-fit"
    scaling="uniform"
    xsl:use-attribute-sets="img"/>

我发现 width =100％是你自己尝试中缺失的一块。希望这有助于未来的访客。

I found that width="100%" was the missing piece in your own attempts. Hope this helps future visitors.

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