一般原因：1.保存时带有大量元数据2.一些智能对象文件过大
解决方案
1.清除元数据
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();
将上面的代码复制到记事本，修改后缀为JSX。ps中打开要处理的源文件，点“文件-脚本-浏览”找到JSX文件载入。等待出现保存星号，ctrl+s保存。
2.将智能对象栅格化即可
