<fo:instream-foreign-object> 对象用于内联图形或 "generic" 类对象。在其中，对象的数据以 <fo:instream-foreign-object> 的后代形式存在。通常情况下，是作为一个非 XSL 命名空间中的 XML 元素子树（一个常见的格式是 SVG）存储于其内部。
该对象的内容尺寸大小是通过调用对象的 size 属性来定义的，并通过指定 content-height、content-width 以及 scaling 属性来缩放尺寸大小。
如果尺寸放大后内容太大了，那么可以使用 overflow 属性来设置滚动条对溢出部分进行浏览。
<fo:instream-foreign-object>
<!--
Contents:(see below)
-->
</fo:instream-foreign-object>
该对象有一个来自于非 XSL 命名空间的子类。它也可能包含非 XSL 命名空间的额外属性。
| 属性 [A-J] | 属性 [K-Z] |
|---|---|
| alignment-adjust | keep-with-next |
| alignment-baseline | keep-with-previous |
| azimuth | language |
| background-attachment | left |
| background-color | line-height |
| background-image | margin-bottom |
| background-repeat | margin-left |
| background-position-horizontal | margin-right |
| background-position-vertical | margin-top |
| baseline-shift | overflow |
| block-progression-dimension | padding-after |
| border-after-color | padding-before |
| border-after-style | padding-bottom |
| border-after-width | padding-end |
| border-before-color | padding-left |
| border-before-style | padding-right |
| border-before-width | padding-start |
| border-bottom-color | padding-top |
| border-bottom-style | pause-after |
| border-bottom-width | pause-before |
| border-end-color | pitch |
| border-end-style | pitch-range |
| border-end-width | play-during |
| border-left-color | relative-position |
| border-left-style | richness |
| border-left-width | right |
| border-right-color | role |
| border-right-style | scaling |
| border-right-width | scaling-method |
| border-start-color | script |
| border-start-style | source-document |
| border-start-width | space-end |
| border-top-color | space-start |
| border-top-style | speak |
| border-top-width | speak-header |
| bottom | speak-numeral |
| clip | speak-punctuation |
| content-height | speech-rate |
| content-type | stress |
| content-width | text-align |
| country | text-indent |
| cue-after | top |
| cue-before | voice-family |
| display-align | volume |
| dominant-baseline | width |
| elevation | |
| height | |
| id | |
| inline-progression-dimension |