In the PDF form, there could be graphic elements such as a vector image, an oblique line, and a curved line.

在PDF表单中，可以有图形元素，例如矢量图像、斜线和曲线。

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If you think about it, an image with curved corners can be made by taking some standard pre-made corners, and superimposing them over the original image.

如果您考虑一下，可以通过将一些标准预制的角叠加到原始图像上来制作出具有圆角的图像。

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If the outside corners are rounded, we should make the front image only as wide as the curved portion of the image.

如果外部是圆角，我们就应该控制上面一副图像和它的弧线部分具有一样的宽度。

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The most indelible image of Ravenna is from the back, and of her back curved and ebony white, with a spine photographed to seem reptilian.

WSJ: Snow White and the Huntsman | The Most Visually Rich of All | Film Review by Joe Morgenstern