Charltsing.Liu

我也很好奇这种PDF的来源。之前遇到过一种情况，就是有人使用PDF-XChange添加图片的时候，莫名其妙图像大小放大了四倍，可能是DPI设置问题。这就导致插入的图像忽大忽小。如果你也用这个软件，考虑换别的试试。

文档结构探查器能看到图片的位置信息吗？

> 能看到。在输出对象指令（Do）前会有个矩阵（cm）指令，其参数最后的两个值，一般就是偏移位置。  ITextSharp的GetContentBytesForPage读出来的contentbytes有没有什么现成的方法可以解析成不同图像的指令字符串呢？ 或者说如何删除这两个绘图状态指令？我现在只能用字符串替换的方法来查找和删指令。

百度翻译 AI基础版 然而，这不允许保留任何结构，无法在不损失质量的情况下缩放到不同的纸张尺寸或分辨率，涉及巨大的文件大小等等。

> Thanks for sharing the images but I have no idea what your issue is? AutoOrient()，The image should automatically rotate in the direction of the arrow, with the arrow pointing...

I don't quite understand the definition of the orientation tag in the heic image format. 90.heic as an example, the default rotation of this image is 270 degrees My understanding...

This issue comes from [here](https://github.com/d2phap/ImageGlass/issues/1928) How can I make the image show the correct orientation? **i try [copytrans](https://copytrans.studio/download/), The orientation of the images is correct**  **it is ImageGlass (Magick.Net...

i set PreserveOrientation = false, The orientation of the images is correct settings.SetDefines(new HeicReadDefines { PreserveOrientation = false, }); so, AutoOrient is invalid for heic ? BaseWidth is always the...

i test 90.heic set PreserveOrientation = false AutoOrient() does not work , MagickImage.Orientation is always TopLeft. if set PreserveOrientation = true, MagickImage.Orientation is Undefined, then AutoOrient(), MagickImage.Orientation is TopLeft. So...

https://github.com/CharsetDetector/UTF-unknown