//Relink files.js 
//Usage: 
//The files must be in a same folder: 
//1.relink files with new extensions; 
//2.relink a file using another file( must including the file extensions); 
// 
//============================================================================================================ 
myDialog = app.dialogs.add(); 
myDialog.name = "Relink files"; 
myLabelsColumn1 = myDialog.dialogColumns.add(); 
with(myLabelsColumn1){ 
    staticTexts.add({staticLabel:"Files"}); 
    staticTexts.add({staticLabel:"Relink:"}); 
    staticTexts.add({staticLabel:"Files"}); 
} 
myLabelsColumn2 = myDialog.dialogColumns.add(); 
AAFileField = myLabelsColumn2.textEditboxes.add({editContents:".eps"}); 
myLabelsColumn2.staticTexts.add(); 
BBFileField = myLabelsColumn2.textEditboxes.add({editContents:".tif"}); 
if(myDialog.show() == true){ 
    AAFile = AAFileField.editContents; 
    BBFile = BBFileField.editContents; 
    AA = String(File.encode(AAFile));//Here!: modify the files extensions or a file name(must including the file extensions) 
    BB = String(File.encode(BBFile));//Here!: modify the files extensions or a file name(must including the file extensions) 
    //alert(AA); 
    myLinks = app.activeDocument.links; 
    myLinksLength = myLinks.length; 
    for (oneLink=myLinks.length-1;oneLink>-1;oneLink--) { 
        myLink = myLinks[oneLink]; 
        myName = String(File.encode(myLink.name)); 
        myLinkName = myName.split(String(File.encode("."))); 
        myLinkExtention = 
String(File.encode("."))+String(File.encode(myLinkName[1])); 
        myLinkPath = String(myLinks[oneLink].filePath); 
        myNewLinkPath = String(File.decode(myLinkPath.split(AA).join(BB))); 
        myNewFile = File(myNewLinkPath); 
        try{ 
            if((myLinkExtention == AA) || (myName == AA)){ 
                myLink.relink(myNewFile); 
                myLink.update(); 
            } 
        } 
        catch(e){ 
        } 
    } 
} 

// Relink files_mod.js 
// Usage: 
// The files must be in a same folder: 
// 1.relink files with new extensions; 
// e.g. old extension = ".eps", new extension = ".tif"  
// ("myPicture.eps" -> "myPicture.tif") 
// 
// 2.relink a file using another file - with exchanging parts of filename; 
// e.g. old part of filename = "Picture", new part of filename = "Poster" 
// ("myPicture.tif") -> "myPoster.tif" 
// 
//============================================================================================================ 
myDialog = app.dialogs.add(); 
myDialog.name = "Relink files"; 
myLabelsColumn1 = myDialog.dialogColumns.add(); 
with(myLabelsColumn1){ 
    staticTexts.add({staticLabel:"Files"}); 
    staticTexts.add({staticLabel:"Relink:"}); 
    staticTexts.add({staticLabel:"Files"}); 
} 
myLabelsColumn2 = myDialog.dialogColumns.add(); 
AAFileField = myLabelsColumn2.textEditboxes.add({editContents:".eps"}); 
myLabelsColumn2.staticTexts.add(); 
BBFileField = myLabelsColumn2.textEditboxes.add({editContents:".tif"}); 
if(myDialog.show() == true){ 
    AAFile = AAFileField.editContents; 
    BBFile = BBFileField.editContents; 
    AA = String(File.encode(AAFile));//Here!: modify the files extensions or a file name(must including the file extensions) 
    BB = String(File.encode(BBFile));//Here!: modify the files extensions or a file name(must including the file extensions) 
    myLinks = app.activeDocument.links; 
    myLinksLength = myLinks.length; 
    for (oneLink=myLinks.length-1;oneLink>-1;oneLink--) { 
        myLink = myLinks[oneLink]; 
        myName = String(File.encode(myLink.name)); 
        myLinkName = myName.split(String(File.encode("."))); 
        myLinkExtention = String(File.encode("."))+String(File.encode(myLinkName[1])); 
        myLinkPath = String(myLinks[oneLink].filePath); 
        x1= myLinkPath.split(AA) 
        x2 = x1.join(BB) 
        myNewLinkPath = String(File.decode(myLinkPath.split(AA).join(BB))); 
        myNewFile = File(myNewLinkPath); 
        try{ 
		myLink.relink(myNewFile); 
		myLink.update(); 
        } 
        catch(e){ 
        } 
    } 
}