要在不失真的情况下调整尺寸，请保留原始长宽比。长宽比是宽度与高度之间的关系。如果您改变一边，另一边通常应以相同比例缩放。
例如，1600 x 900 的图片比例为 16:9。将其调整为 800 x 450 会保持相同形状。除非裁剪，否则将其调整为 800 x 800 会拉伸或压扁内容。
简单规则
如果目标需要不同的形状，请裁剪。如果需要相同形状但不同尺寸，请调整大小。除非您知道最终图片应该被拉伸，否则避免强制同时改变宽度和高度。
Image Resize Tool 默认启用长宽比，因此一般缩放不会让图像变形。
常见问题
是什么造成图片变形？
当宽度和高度未保留原始长宽比而各自独立更改时，就会发生变形。
裁剪是否比拉伸更好？
通常是。裁剪会移除部分图像，而拉伸会改变其中所有内容的形状。
Resources
参考资料
利用这些参考资料，在指南、对应的支持页面与内容创作者之间切换。
Resize images to exact pixel dimensions with local browser processing for supported files.
打开工具Image CropperCrop images with free, square, portrait, landscape, and social media presets.
打开工具网站最佳图片尺寸：实用指南在不浪费页面加载量的情况下，为网站主视觉、博客图片、产品照片、缩略图与 Retina 屏幕挑选实用的图片尺寸。
阅读指南如何调整社交媒体图片尺寸：Instagram、YouTube、Twitter、LinkedIn使用免费的浏览器工具，为 Instagram 帖子、YouTube 缩略图、Twitter 卡片和 LinkedIn 个人资料获取正确的图片尺寸，并让你的文件保持私密。
阅读指南为什么上传后图片看起来模糊？一份实用的模糊上传图片故障排除指南，涵盖尺寸限制、压缩、Retina 显示屏与格式选择。
阅读指南Leon PatelCreates how-to guides and photo tips that keep the advice simple, clear, and ready to use in Gift Studio.
查看作者Dylan RossChecks guides and photo tips for freshness, usefulness, and a calm editorial voice.
查看审核者打开 Gift StudioApply the guide in the editor when you are ready to make the gift.
制作礼物See how the article was reviewed, then use the buttons below if something needs attention.
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