photoShop支持retina显示屏

没有实验性功能的看过来，可以强制ps的所有UI跟随系统缩放，操作系统级别的，无论PS有没有内置这个功能，唯一不好的是，编辑区图片享受不到4K的好处，算是4K显示器的迂回解决办法吧：

1.打开注册表Win+R输入regedit

2.找到HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows > CurrentVersion > SideBySide，在SideBySide右键新建一个DWORD(32位)值，名字为PreferExternalManifest，值为十进制1，保存退出

3.新建一个文件photoshop.exe.manifest，注意后缀就是manifest，放入photoshop.exe同一文件夹下，写入以下内容，保存后，重启PS调整为正常尺寸即可

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">

<dependency>

<dependentAssembly>

<assemblyIdentity

type="win32"

name="Microsoft.Windows.Common-Controls"

version="6.0.0.0" processorArchitecture="*"

publicKeyToken="6595b64144ccf1df"

language="*">

</assemblyIdentity>

</dependentAssembly>

</dependency>

<dependency>

<dependentAssembly>

<assemblyIdentity

type="win32"

name="Microsoft.VC90.CRT"

version="9.0.21022.8"

processorArchitecture="amd64"

publicKeyToken="1fc8b3b9a1e18e3b">

</assemblyIdentity>

</dependentAssembly>

</dependency>

<trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">

<security>

<requestedPrivileges>

<requestedExecutionLevel

level="asInvoker"

uiAccess="false"/>

</requestedPrivileges>

</security>

</trustInfo>

<asmv3:application>

<asmv3:windowsSettings xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">

<ms_windowsSettings:dpiAware xmlns:ms_windowsSettings="http://schemas.microsoft.com/SMI/2005/WindowsSettings">false</ms_windowsSettings:dpiAware>

</asmv3:windowsSettings>

</asmv3:application>

</assembly>