解决PSD文件体积巨大，PS卡顿的方法（包括智能对象）

admin • 2023年4月8日 pm4:07 • 建站运维 • 107 阅读

尝试过的方案

方案1

元数据清理工具，例如：Exif Tag Remover，Exiftool 之类的，能清除部分元数据，但无法完全清除PSD中的元数据。

方案2

找到了这个博客的解决方案：一键大幅清理PSD文件容量占用

递归遍历图层对每个智能对象进行处理。

以下代码请复制到文本编辑器中保存为：PsDeepCleaner.jsx，或者下载下方操作步骤中附件。

/**
 * @author Jason
 * @email jiangran@126.com
 * @name PsDeepCleaner
 * @description photoshop metadata deep clean script
 */

function deleteDocumentAncestorsMetadata() {
    if(String(app.name).search("Photoshop") > 0) {

        if(!documents.length) {
            alert("您没有打开文件。请打开一个文件再执行此脚本。")
            return;
        }

        if (ExternalObject.AdobeXMPScript == undefined) ExternalObject.AdobeXMPScript = new ExternalObject("lib:AdobeXMPScript");

        var xmp = new XMPMeta( activeDocument.xmpMetadata.rawData);
        xmp.deleteProperty(XMPConst.NS_PHOTOSHOP, "DocumentAncestors");
        app.activeDocument.xmpMetadata.rawData = xmp.serialize();

        clearDocumentAncestorsForAllLayers(app.activeDocument);

        if (app.activeDocument !== mainDocument) {
            app.activeDocument.close(SaveOptions.SAVECHANGES);
        }else{
            app.activeDocument.save();
        }
    }
}

function clearDocumentAncestorsForAllLayers(doc) {
    try {

        if (doc == undefined) {
            return;
        }

        for (var i = 0; i < doc.layers.length; i++) {
            var curLayer = doc.layers[i];
            if (curLayer.typename != "ArtLayer") {
                clearDocumentAncestorsForAllLayers(curLayer);
                continue;
            }

            if (curLayer.kind == "LayerKind.SMARTOBJECT") {

                app.activeDocument.activeLayer = curLayer;
                
                var idplacedLayerEditContents = stringIDToTypeID("placedLayerEditContents");
                var actionDescriptor = new ActionDescriptor();
                executeAction(idplacedLayerEditContents, actionDescriptor, DialogModes.NO);

                if(app.activeDocument.activeLayer == curLayer){
                    continue;
                }
                deleteDocumentAncestorsMetadata()
                layerSetStr += ("\n"+curLayer.name)

            }
        }
    } catch (e) {
        alert("图层清理失败，请重启PS后重试。文件名："+doc+";错误信息："+e)
    }
}

var layerSetStr = "";
var mainDocument = app.activeDocument;
function start(){
    deleteDocumentAncestorsMetadata();
    alert("清除完毕。\n[文件名]:"+mainDocument.name+"\n[图层集合]:"+layerSetStr);
}

try{
    if(confirm("开始清理后PS会卡住，请耐心等待完成提示。开始清理？")){
        start();
    }
} catch (e) {
    alert("清理失败，请重启PS后重试，错误信息："+e)
}