[美工]PS无压缩导出小体积图片脚本代码

通常复杂的PS文件导出时体积都非常大，通过一个简单脚本即可无压缩保存PS导出文件，体积缩小N倍

1.这是文件的尺寸，不大也不小

2.导出jpg可以看到，目前一张jpg差不多42 M

3.然后导入制作好的文件，通过脚本导入。导入后ps会卡顿一小会，等正常后文件就恢复正常了。（因为内容问题，所以我把内容覆盖掉了）

4.最后重新导出，可以看到文件已经非常小了，还不到1M

5.脚本文件内容：

function deleteDocumentAncestorsMetadata() {
whatApp = String(app.name);//String version of the app name
if(whatApp.search("Photoshop") > 0) { //Check for photoshop specifically, or this will cause errors
//Function Scrubs Document Ancestors from Files
if(!documents.length) {
alert("There are no open documents. Please open a file to run this script.")
return;
}
if (ExternalObject.AdobeXMPscript == undefined) ExternalObject.AdobeXMPscript = new ExternalObject("lib:AdobeXMPscript");
var xmp = new XMPMeta( activeDocument.xmpMetadata.rawData);
// Begone foul Document Ancestors!
xmp.deleteProperty(XMPConst.NS_PHOTOSHOP, "DocumentAncestors");
app.activeDocument.xmpMetadata.rawData = xmp.serialize();
}
}
//Now run the function to remove the document ancestors
deleteDocumentAncestorsMetadata();

用记事本粘贴以上代码后另存，后缀改为JSX，即（名字.jsx）后打开问题文件，文件-脚本-浏览-载入JSX格式文件即可。