英文:
Image in a PDF rendering with artifacts at various zooms in Adobe Reader or Kofax Power PDF, but normal in internet browsers
问题
Image in a PDF rendering with artifacts at various zooms in Adobe Reader or Kofax Power PDF, but normal in internet browsers. Focus on 125% zoom, Kofax Power PDF one.
在Adobe Reader或Kofax Power PDF中，以不同缩放比例查看的PDF渲染中出现伪影，但在互联网浏览器中正常。重点关注125%缩放，Kofax Power PDF。
I have same issue with PNG, JPEG, tiff images.
我在PNG、JPEG和TIFF图像上遇到了相同的问题。
Examples below. Why does it render differently, and how do I force consistency?
以下是示例。为什么它会呈现不同，我如何强制保持一致性？
I tried using different file formats, but it is consistently different.
我尝试使用不同的文件格式，但结果始终不同。
英文:
Image in a PDF rendering with artifacts at various zooms in Adobe Reader or Kofax Power PDF, but normal in internet browsers. Focus on 125% zoom, Kofax Power PDF one.
I have same issue with PNG, JPEG, tiff images.
Examples below. Why does it render differently, and how do I force consistency?
I tried using different file formats, but it is consistently different.
答案1
得分: 1
以下是翻译好的部分：
"由于PNG像素图像没有伪影，这里是两个100%并排的图像，我们只能看到抗锯齿中的微小偏移，没有JPEG的光晕或平均值。问题很简单，当矢量被像素边界切割时，哪个正方形应该是哪个颜色。"
"125%"
"由于屏幕位置和算法的原因，2种不同的渲染引擎会稍微不同地插值矢量。"
"当您使用JPEG时，您会看到伪影，左边是从PNG到JPEG的图像。"
"JPEG外部颜色异常（光晕）在我们反转背景或它是半透明时更加显眼。"
英文:
As PNG pixel images neither have artifacts here are the 2 x 100% side by side where all we see is a miniscule shift in AntiAlias there are no JPEG halos or averaging here. The "problem" is simply which square should be which colour when vectors are sliced by a pixel boundary.
125%
2 different rendering engines will interpolate vectors slightly differently due to screen position and algorithms.
When you use JPEG then you see artefacts, here on the left is JPEG from PNG on the right.
JPEG outer colour aberrations (halos) are more noticeable when we reverse the background or it is translucent.
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