支援終止通知：2025 年 11 月 13 日， AWS 將停止對 Amazon Elastic Transcoder 的支援。2025 年 11 月 13 日之後，您將無法再存取 Elastic Transcoder 主控台或 Elastic Transcoder 資源。

如需轉換至 的詳細資訊 AWS Elemental MediaConvert，請造訪此[部落格文章](https://aws.amazon.com/blogs/media/how-to-migrate-workflows-from-amazon-elastic-transcoder-to-aws-elemental-mediaconvert/)。

本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。

# 調整大小政策和長寬比
<a name="aspect-ratios"></a>

您選擇的**大小調整政策**會影響 Elastic Transcoder 套用至輸出映像的擴展，如下表所示。


| 調整大小政策 | 輸出影像可能會放大 | 若填補政策為「Pad」，可能會對輸出影像進行填補 | 輸出影像的像素長寬比可能會和輸入影像不同 | 輸出影像可能會被裁切 | 
| --- | --- | --- | --- | --- | 
| **符合** | 是 | 是 |   |   | 
| **填滿** | 是 |   |   | 是 | 
| **Stretch** | 是 |   | 是 |   | 
| **維持** |   | 是 |   | 是 | 
| **ShrinkToFit** |   | 是 |   |   | 
| **ShrinkToFill** |   | 是 |   | 是 | 

## 長寬比縮圖
<a name="ratio-thumbnails"></a>

下表顯示 **Sizing Policy (調整大小政策)**、**Padding Policy (填補政策)**、**Max Height (高度上限)** 和 **Max Width (寬度上限)** 如何與輸出影像互動。

**Topics**
+ [符合](#fit-ratio)
+ [Fill](#fill-ratio)
+ [Stretch](#stretch-ratio)
+ [維持](#keep-ratio)
+ [縮小以符合](#shrink-to-fit-ratio)
+ [縮小以填滿](#shrink-to-fill-ratio)

### 符合
<a name="fit-ratio"></a>

如果您選擇**適合您****的大小調整政策**，Elastic Transcoder 會擴展您的輸入檔案，直到其符合輸出映像的維度，而不會超過輸出映像的維度。

例如，如果您的輸入檔案是`200`像素乘`200`以像素，而您想要輸出影像是`300`像素乘以`400`像素，則 Elastic Transcoder 會將檔案的大小增加為`300``300`像素，並將填補政策套用至檔案的側邊。如果您為**填充政策**選擇**未新增**，Elastic Transcoder 會傳回`300`像素檔案的`300`像素作為輸出。如果您選擇**填充**，Elastic Transcoder 會在輸出的任一端新增填補`50`像素，並`300`依像素檔案傳回`400`像素。

**索引鍵**

![\[長寬比金鑰\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/key.png)



| 條件 | 輸入 | 輸出：無填補 | 輸出：填補 | 
| --- | --- | --- | --- | 
| 輸入寬度 **<** 輸出寬度上限 輸入高度 **<** 輸出高度上限 | ![\[Blue user icon with dimensions labeled: 200x200 inner square, 300x400 outer rectangle.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input1-thumb.png) | ![\[Blue figure icon with size dimensions labeled around it: 400 width, 300 height, 200 top and left.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fit1-unpadded-thumb.png) | ![\[Diagram showing a blue figure icon centered within a frame with dimensions labeled.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fit1-padded-thumb.png) | 
| 輸入寬度 **<** 輸出寬度上限 輸入高度 **> (>)** 輸出高度上限 | ![\[Blue pawn-shaped figure on a checkered background with red measurement lines.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input2-thumb.png) | ![\[Diagram showing a blue figure centered in a 400x200 pixel area with surrounding measurements.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fit2-unpadded-thumb.png) | ![\[Diagram showing a blue figure centered within a white rectangle surrounded by black bars.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fit2-padded-thumb.png) | 
| 輸入寬度 **> (>)** 輸出寬度上限 輸入高度 **<** 輸出高度上限 | ![\[Blue user icon centered within a rectangular frame with dimensions labeled.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input3-thumb.png) | ![\[Diagram showing a rectangle with dimensions 400x300 inside a larger 500x200 area.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fit3-unpadded-thumb.png) | ![\[Diagram showing dimensions of a rectangle: 500 width, 400 height, with inner area of 300x200.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fit3-padded-thumb.png) | 
| 輸入寬度 **> (>)** 輸出寬度上限 輸入高度 **> (>)** 輸出高度上限 | ![\[Blue silhouette icon of a person within a red square frame on a grid background.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input4-thumb.png) | ![\[Blue 3D figure resembling a snowman or stacked spheres centered in a square frame.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fit4-unpadded-thumb.png) | ![\[Blue 3D snowman-like figure centered within nested squares on a checkered background.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fit4-padded-thumb.png) | 

### Fill
<a name="fill-ratio"></a>

如果您選擇**填充****大小政策**，Elastic Transcoder 會擴展輸入檔案，直到其填滿輸出映像的維度，並裁切任何超過輸出映像維度的項目。

例如，如果您的輸入檔案是`200`像素乘`200`以像素，而您想要輸出影像是`300`像素乘以`400`像素，則 Elastic Transcoder 會將輸入的大小增加為`400`像素乘以`400`像素，裁剪掉頂部和底部`50`像素，並傳回`300`像素乘以`400`像素檔案。Elastic Transcoder 不會使用**填充**政策的填補。

**索引鍵**

![\[長寬比金鑰\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/key.png)



| 條件 | 輸入 | 輸出：無填補 | 輸出：填補 | 
| --- | --- | --- | --- | 
| 輸入寬度 **<** 輸出寬度上限 輸入高度 **<** 輸出高度上限 | ![\[Blue user icon with dimensions labeled: 200x200 inner square, 300x400 outer rectangle.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input1-thumb.png) | ![\[Blue figure icon with dimensions and sizing information overlaid on a checkered background.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fill1-thumb.png) | ![\[Blue figure icon with dimensions and sizing information overlaid on a checkered background.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fill1-thumb.png) | 
| 輸入寬度 **<** 輸出寬度上限 輸入高度 **> (>)** 輸出高度上限 | ![\[Blue pawn-shaped figure on a checkered background with red measurement lines.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input2-thumb.png) | ![\[Diagram showing a blue figure with dimensions: 200 height, 300 width, 400 total height.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fill2-thumb.png) | ![\[Diagram showing a blue figure with dimensions: 200 height, 300 width, 400 total height.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fill2-thumb.png) | 
| 輸入寬度 **> (>)** 輸出寬度上限 輸入高度 **<** 輸出高度上限 | ![\[Blue user icon centered within a rectangular frame with dimensions labeled.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input3-thumb.png) | ![\[Blue hourglass-shaped icon with numerical values indicating dimensions around it.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fill3-thumb.png) | ![\[Blue hourglass-shaped icon with numerical values indicating dimensions around it.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fill3-thumb.png) | 
| 輸入寬度 **> (>)** 輸出寬度上限 輸入高度 **> (>)** 輸出高度上限 | ![\[Blue silhouette icon of a person within a red square frame on a grid background.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input4-thumb.png) | ![\[Blue 3D figure centered in a square frame with measurement indicators on the sides.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fill4-thumb.png) | ![\[Blue 3D figure centered in a square frame with measurement indicators on the sides.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fill4-thumb.png) | 

### Stretch
<a name="stretch-ratio"></a>

如果您選擇**擴展****規模政策**，Elastic Transcoder 會擴展或縮減輸入檔案，直到其符合您輸出檔案的維度。

例如，如果您的輸入檔案是`200`像素乘`200`以像素，而您想要輸出影像是`300`像素乘以`400`像素，Elastic Transcoder `300`會將輸入的大小增加為`400`像素，從而扭曲輸出影像的比例。Elastic Transcoder 不會為**延伸**政策使用填補或裁切。

**索引鍵**

![\[長寬比金鑰\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/key.png)



| 條件 | 輸入 | 輸出：無填補 | 輸出：填補 | 
| --- | --- | --- | --- | 
| 輸入寬度 **<** 輸出寬度上限 輸入高度 **<** 輸出高度上限 | ![\[Blue user icon with dimensions labeled: 200x200 inner square, 300x400 outer rectangle.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input1-thumb.png) | ![\[Blue 3D object resembling a chess pawn piece with dimensions labeled around it.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/stretch1-thumb.png) | ![\[Blue 3D object resembling a chess pawn piece with dimensions labeled around it.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/stretch1-thumb.png) | 
| 輸入寬度 **<** 輸出寬度上限 輸入高度 **> (>)** 輸出高度上限 | ![\[Blue pawn-shaped figure on a checkered background with red measurement lines.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input2-thumb.png) | ![\[Diagram showing dimensions of a blue cylindrical object on a checkered background.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/stretch2-thumb.png) | ![\[Diagram showing dimensions of a blue cylindrical object on a checkered background.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/stretch2-thumb.png) | 
| 輸入寬度 **> (>)** 輸出寬度上限 輸入高度 **<** 輸出高度上限 | ![\[Blue user icon centered within a rectangular frame with dimensions labeled.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input3-thumb.png) | ![\[Diagram showing a blue bowling pin shape centered within nested rectangles and numerical labels.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/stretch3-thumb.png) | ![\[Diagram showing a blue bowling pin shape centered within nested rectangles and numerical labels.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/stretch3-thumb.png) | 
| 輸入寬度 **> (>)** 輸出寬度上限 輸入高度 **> (>)** 輸出高度上限 | ![\[Blue silhouette icon of a person within a red square frame on a grid background.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input4-thumb.png) | ![\[Blue 3D figure resembling a snowman or stacked spheres centered in a square frame.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/stretch4-thumb.png) | ![\[Blue 3D figure resembling a snowman or stacked spheres centered in a square frame.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/stretch4-thumb.png) | 

### 維持
<a name="keep-ratio"></a>

如果您選擇**保留****大小調整政策**，Elastic Transcoder 不會擴展您的輸入檔案。Elastic Transcoder 會裁切或填補您的輸入檔案，直到其符合您輸出映像的維度。

例如，如果您的輸入檔案是`400`像素乘`200`以像素，而您想要輸出影像是`300`像素乘以`300`像素，則 Elastic Transcoder 會從頂端和底部裁剪`100`像素，並將您的填補政策套用至側邊。如果您選擇**填充政策**的**未填充**，Elastic Transcoder 會傳回`300`像素輸出檔案的`200`像素。如果您選擇**已填入**，Elastic Transcoder 會傳回`300`像素檔案的`300`像素。

**索引鍵**

![\[長寬比金鑰\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/key.png)



| 條件 | 輸入 | 輸出：無填補 | 輸出：填補 | 
| --- | --- | --- | --- | 
| 輸入寬度 **<** 輸出寬度上限 輸入高度 **<** 輸出高度上限 | ![\[Blue user icon with dimensions labeled: 200x200 inner square, 300x400 outer rectangle.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input1-thumb.png) | ![\[Diagram showing a blue user icon surrounded by numbered dimensions: 200, 300, and 400.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep1-unpadded-thumb.png) | ![\[Diagram showing a centered image with dimensions labeled: 200x200 inner, 400x300 outer.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep1-padded-thumb.png) | 
| 輸入寬度 **<** 輸出寬度上限 輸入高度 **> (>)** 輸出高度上限 | ![\[Blue pawn-shaped figure on a checkered background with red measurement lines.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input2-thumb.png) | ![\[Blue figure icon with dimensions and grid background indicating size specifications.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep2-unpadded-thumb.png) | ![\[Blue figure icon with dimensions and measurements indicated around it.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep2-padded-thumb.png) | 
| 輸入寬度 **> (>)** 輸出寬度上限 輸入高度 **<** 輸出高度上限 | ![\[Blue user icon centered within a rectangular frame with dimensions labeled.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input3-thumb.png) | ![\[Diagram showing a blue user icon centered within nested rectangles with labeled dimensions.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep3-unpadded-thumb.png) | ![\[Diagram showing image dimensions: 500 width, 400 height, with 200 left and 300 right margins.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep3-padded-thumb.png) | 
| 輸入寬度 **> (>)** 輸出寬度上限 輸入高度 **> (>)** 輸出高度上限 | ![\[Blue silhouette icon of a person within a red square frame on a grid background.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input4-thumb.png) | ![\[Blue figure icon centered within red square frame on checkered background.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep4-thumb.png) | ![\[Blue figure icon centered within red square frame on checkered background.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep4-thumb.png) | 

### 縮小以符合
<a name="shrink-to-fit-ratio"></a>

如果您選擇**縮減至適合****大小調整政策**，Elastic Transcoder 會減少輸入檔案的大小，直到其符合輸出檔案的維度，而不會超過輸出映像的任何維度。如果您的輸入檔案小於輸出映像，Elastic Transcoder 不會增加檔案大小。

例如，如果您的輸入檔案是`400`像素乘`400`以像素，而您想要輸出影像是`200`像素乘以`300`像素，Elastic Transcoder 會將您的輸入縮減為`200`像素乘以`200`像素，並套用您的填補政策。如果您選擇**填充政策**的**未填充**，Elastic Transcoder 會傳回`200``200`像素檔案的 作為輸出。如果您選擇**填充**，Elastic Transcoder 會在輸出的任一端新增填補`50`像素，並依`300`像素檔案傳回`300`像素。

**索引鍵**

![\[長寬比金鑰\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/key.png)



| 條件 | 輸入 | 輸出：無填補 | 輸出：填補 | 
| --- | --- | --- | --- | 
| 輸入寬度 **<** 輸出寬度上限 輸入高度 **<** 輸出高度上限 | ![\[Blue user icon with dimensions labeled: 200x200 inner square, 300x400 outer rectangle.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input1-thumb.png) | ![\[Diagram showing a blue user icon surrounded by numbered dimensions: 200, 300, and 400.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep1-unpadded-thumb.png) | ![\[Diagram showing a centered image with dimensions labeled: 200x200 inner, 400x300 outer.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep1-padded-thumb.png) | 
| 輸入寬度 **<** 輸出寬度上限 輸入高度 **> (>)** 輸出高度上限 | ![\[Blue pawn-shaped figure on a checkered background with red measurement lines.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input2-thumb.png) | ![\[Diagram showing a blue figure centered in a 400x200 pixel area with surrounding measurements.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fit2-unpadded-thumb.png) | ![\[Diagram showing a blue figure centered within a white rectangle surrounded by black bars.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fit2-padded-thumb.png) | 
| 輸入寬度 **> (>)** 輸出寬度上限 輸入高度 **<** 輸出高度上限 | ![\[Blue user icon centered within a rectangular frame with dimensions labeled.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input3-thumb.png) | ![\[Diagram showing a rectangle with dimensions 400x300 inside a larger 500x200 area.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fit3-unpadded-thumb.png) | ![\[Diagram showing dimensions of a rectangle: 500 width, 400 height, with inner area of 300x200.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fit3-padded-thumb.png) | 
| 輸入寬度 **> (>)** 輸出寬度上限 輸入高度 **> (>)** 輸出高度上限 | ![\[Blue silhouette icon of a person within a red square frame on a grid background.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input4-thumb.png) | ![\[Blue 3D figure resembling a snowman or stacked spheres centered in a square frame.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fit4-unpadded-thumb.png) | ![\[Blue 3D snowman-like figure centered within nested squares on a checkered background.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fit4-padded-thumb.png) | 

### 縮小以填滿
<a name="shrink-to-fill-ratio"></a>

如果您選擇 **Shrink to Fill** for **Sizing Policy**，Elastic Transcoder 會減少輸入檔案的大小，直到其填滿輸出映像的維度、裁切任何不符合輸出映像的內容，並套用您的填充政策。如果您的輸出映像大於輸入檔案，Elastic Transcoder 不會增加檔案大小。

例如，如果您的輸入檔案是`400`像素乘`200`以像素，而您想要輸出影像是`200`像素乘以`300`像素，Elastic Transcoder 會從側面裁剪`100`像素，並將填補政策套用至檔案的頂端和底部。如果您選擇**填充政策**的**未填充**，Elastic Transcoder 會傳回`200`像素輸出檔案的`200`像素。如果您選擇**已新增**，Elastic Transcoder 會傳回`200`像素檔案的`300`像素。

**索引鍵**

![\[長寬比金鑰\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/key.png)



| 條件 | 輸入 | 輸出：無填補 | 輸出：填補 | 
| --- | --- | --- | --- | 
| 輸入寬度 **<** 輸出寬度上限 輸入高度 **<** 輸出高度上限 | ![\[Blue user icon with dimensions labeled: 200x200 inner square, 300x400 outer rectangle.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input1-thumb.png) | ![\[Diagram showing a blue user icon surrounded by numbered dimensions: 200, 300, and 400.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep1-unpadded-thumb.png) | ![\[Diagram showing a centered image with dimensions labeled: 200x200 inner, 400x300 outer.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep1-padded-thumb.png) | 
| 輸入寬度 **<** 輸出寬度上限 輸入高度 **> (>)** 輸出高度上限 | ![\[Blue pawn-shaped figure on a checkered background with red measurement lines.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input2-thumb.png) | ![\[Blue figure icon with dimensions and grid background indicating size specifications.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep2-unpadded-thumb.png) | ![\[Blue figure icon with dimensions and measurements indicated around it.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep2-padded-thumb.png) | 
| 輸入寬度 **> (>)** 輸出寬度上限 輸入高度 **<** 輸出高度上限 | ![\[Blue user icon centered within a rectangular frame with dimensions labeled.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input3-thumb.png) | ![\[Diagram showing a blue user icon centered within nested rectangles with labeled dimensions.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep3-unpadded-thumb.png) | ![\[Diagram showing image dimensions: 500 width, 400 height, with 200 left and 300 right margins.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/keep3-padded-thumb.png) | 
| 輸入寬度 **> (>)** 輸出寬度上限 輸入高度 **> (>)** 輸出高度上限 | ![\[Blue silhouette icon of a person within a red square frame on a grid background.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/input4-thumb.png) | ![\[Blue 3D figure centered in a square frame with measurement indicators on the sides.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fill4-thumb.png) | ![\[Blue 3D figure centered in a square frame with measurement indicators on the sides.\]](http://docs.aws.amazon.com/zh_tw/elastictranscoder/latest/developerguide/images/fill4-thumb.png) |