ps导出jpg图片好几十M，远远超过应该大小

1、新建一文本文档。

2、把以下代码复制到建立的文本文档并保存function 蟠校盯昂deleteDocumentAncestorsMet锾攒揉敫adata() { //String version of the app name whatApp = String(app.name); // Check for photoshop specifically, or this will cause errors if(whatApp.search("Photoshop") > 0) { // 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 ancestorsdeleteDocumentAncestorsMetadata();

3、更改文本文档后缀名为.jsx

4、打开ps文件（导出jpg很大的文件），执行‘文件’——‘脚本’——‘浏览’命令。选中jsx文件。点击确定即可！！