Export multiple cropped images on a spread with original linked names and specific dimensions

Hi @kevinfabrizi,

I've had a crack at writing a script to solve your challenge. Let me know if this works for you. I've only tested on basic documents, so it might need some tweaking to handle less basic cases.

- Mark

/*

    Export All Graphics As JPG
    by m1b
    here: https://community.adobe.com/t5/indesign-discussions/export-multiple-cropped-images-on-a-spread-with-original-linked-names-and-specific-dimensions/m-p/12490323

    Will attempt to export every graphic in a document to a folder, as JPG image at set resolution.
    Filename has pixel dimensions appended.

*/

function main() {

    var exportResolution = 300; // ppi

    exportAllLinkedImagesAsJPG(exportResolution);

    function exportAllLinkedImagesAsJPG(resolution) {
        resolution = resolution || 300;
        var graphics = app.activeDocument.allGraphics;
        for (var i = 0; i < graphics.length; i++) {
            var graphic = graphics[i],
                frame = graphic.parent,
                w = Math.round((frame.visibleBounds[3] - frame.visibleBounds[1]) * (resolution / 72)),
                h = Math.round((frame.visibleBounds[2] - frame.visibleBounds[0]) * (resolution / 72)),
                filename = getFileNameForItem(frame) + '_' + w + 'x' + h;
            exportItemAsJPG({
                item: frame,
                filename: filename,
                resolution: resolution,
                exportPath: '~/Desktop/exported-jpg-' + resolution + 'ppi/'
            });
        }
    }

    function exportItemAsJPG(p) {
        if (p.item == undefined) return;
        p.filename = p.filename || p.item.constructor.name + ' ' + p.item.index;
        p.resolution = p.resolution || 300;
        p.exportPath = p.exportPath || '~/Desktop/exported-jpg-' + p.resolution + 'ppi/';

        // create the folder if necessary
        if (!Folder(p.exportPath).exists) Folder(p.exportPath).create();

        // set jpeg preferences
        app.jpegExportPreferences.exportResolution = p.resolution; // ppi
        app.jpegExportPreferences.jpegQuality = JPEGOptionsQuality.high; // low medium high maximum

        // export
        var path = p.exportPath + p.filename + '.jpg';
        p.item.exportFile(
            ExportFormat.jpg,
            File(path),
            false
        );
    }

    function getFileNameForItem(item, keepExtension) {
        var name = item.constructor.name + ' ' + item.id;
        if (item.graphics != undefined) {
            if (item.graphics[0].itemLink != undefined) {
                name = item.graphics[0].itemLink.name.replace(/\.[^.]+$/, '');
            }
        }
        return name;
    }


} // end main

app.doScript(main, ScriptLanguage.JAVASCRIPT, undefined, UndoModes.ENTIRE_SCRIPT, 'Export graphics');