How to request - Updating an embedded image in a PDF using Actions but not all actions are recorded

Question

i am trying to create an Action in CS3 but some of my actions are not been recorded.
What i want to do is run the Batch option on a folder with a 1,000 PDFs in it. The PDFs
(which were created in Illustrator CS3) consist of a single page with a single embedded
image at the foot of the page. I am trying to update that embedded image.
The Actions i am trying to record are...
1) Select the single image in the Links palette.
2) Choose the "Relink.." option in the drop down menu of the Links palette.
3) Navigate to the new image and select "Place".
4) Save and close document.
But the first two actions are not been recorded.
How do i get around this problem ?
Note: From trying this manually the new image seems to take on the horizontal and
vertical scaling of the previous image which is what i want. But if i am going to have to
do a script then that is a factor that may have to be incorporated into the script.
Any help appreciated.

Answer 1

Give this a trial… It does a save as which is much safer than overwriting… At least you still have your originals should I get something wrong…? I did test but only with 3 files…
#target illustrator
function replaceImage() {
          var i, doc, fileList, inFolder, outFolder, opts, pic, rep, rip, saveFile, uIL;
          inFolder = Folder.selectDialog( 'Please choose your Folder of AI PDFs…' );
          outFolder = Folder.selectDialog( 'Please choose a Folder to save AI PDFs in…' );
          pic = File.openDialog( 'Please choose your replacement Image…' );
          if ( inFolder != null && outFolder  != null && pic != null ) {
                    fileList = inFolder.getFiles( /\.pdf$/i );
                    if ( fileList.length > 0 ) {
                              uIL = app.userInteractionLevel;
                              app.userInteractionLevel = UserInteractionLevel.DONTDISPLAYALERTS;
                              for ( i = 0; i < fileList.length; i++ ) {
                                        doc = app.open( fileList[i] );
                                        rip = doc.rasterItems[0].position;
                                        rep = doc.placedItems.add();
                                        rep.file = pic;
                                        rep.move( doc.rasterItems[0], ElementPlacement.PLACEBEFORE )
                                        rep.position = rip;
                                        rep.resize( 31.414, 31.414, true, true, true, true, 100, Transformation.TOPLEFT );
                                        doc.rasterItems[0].remove();
                                        rep.embed();
                                        opts = new PDFSaveOptions();
                                        opts.pDFPreset = '[Illustrator Default]';
                                        saveFile = File( outFolder + '/' + doc.name );
                                        doc.saveAs( saveFile, opts );
                                        doc.close( SaveOptions.DONOTSAVECHANGES );
                              app.userInteractionLevel = uIL;
                    } else {
                              alert( 'This Folder contained NO Illustrator PDF files?' );
replaceImage();