Save to PDF doesn't scale properly

[wh0am15533]

Version

latest

Bug description

When clicking save PDF, the scaling of the resulting PDF is 'squenched'. It looks likes its all smashed.

OS

Windows 10

Environment

No response

[dliang001]

+1 同样的问题，问题很多的情况下输出为pdf，缩放比例就会变形。

[asheroto]

Also have this issue, but it appears to only occur with large chats (more than a few responses). Small chats appear normal.

Examples...

PNG - looks normal

PDF - looks squished