如何使图像下载在一个新的网页

我有一个png图像，将下载当用户点击下载图标，现在的图像是下载在同一网页上，它是开放的。我想让图像下载在一个新的网页。这里是下面的代码，我找不到在哪里改变代码，使其下载到一个新的网页。我认为应该修改的代码是……

header("Content-disposition: attachment; filename='"$iconName".$sizeName.".png'"");

如果您想查看完整的代码，如下所示。请帮我解决这个问题....

<?php
    ob_start();
    require "../config.php";
    error_reporting(0);
    $icon = $_GET['icon'];
    $iconName = str_replace(".png", "", $_GET['in']);
    $dimensions = $_GET['size'];
    $padding = $_GET['padding'];
    $bgShape = $_GET['bgShape']; if(!$bgShape) $bgShape = 'TransparentCNT.png';
    $bgColorR = $_GET['bgColorR'];
    $bgColorG = $_GET['bgColorG'];
    $bgColorB = $_GET['bgColorB'];
    $iconColorR = $_GET['iconColorR'];
    $iconColorG = $_GET['iconColorG'];
    $iconColorB = $_GET['iconColorB'];
    /////////////////////////////////////////////////////////// 
    $final_image = imagecreatetruecolor($dimensions, $dimensions);
    imagealphablending($final_image, false);
    $transparency = imagecolorallocatealpha($final_image,  0, 0, 0, 127);
    imagefilledrectangle($final_image, 0, 0, $dimensions, $dimensions, $transparency);
    imagesavealpha($final_image, true);
    imagealphablending($final_image, true);
    if($bgShape != '') {
        list($originalWidth, $originalHeight) = getimagesize('../images/' . $bgShape);
        $background = imagecreatefrompng('../images/' . $bgShape);
        imagefilter($background, IMG_FILTER_BRIGHTNESS, -255);
        imagefilter($background, IMG_FILTER_COLORIZE, $bgColorR, $bgColorG, $bgColorB);
        $backgroundImage = imagecreatetruecolor( $dimensions, $dimensions );
        imagealphablending($backgroundImage , false);
        imagesavealpha($backgroundImage , true);
        imagecopyresampled($backgroundImage,
            $background,
            0, 0,
            0, 0,
            $dimensions, $dimensions,
            $originalWidth, $originalHeight
        );
        imagecopy($final_image, $backgroundImage, 0, 0, 0, 0, $dimensions, $dimensions);
    }
    $icon = imagecreatefrompng("../" . $icon);
    imagefilter($icon, IMG_FILTER_BRIGHTNESS, -255);
    imagefilter($icon, IMG_FILTER_COLORIZE, $iconColorR, $iconColorG, $iconColorB);
    $iconImage = imagecreatetruecolor( $dimensions, $dimensions );
    imagealphablending($iconImage, false);
    $transparency = imagecolorallocatealpha($iconImage,  0, 0, 0, 127);
    imagefilledrectangle($iconImage, 0, 0, $dimensions, $dimensions, $transparency);
    imagesavealpha($iconImage, true);
    imagealphablending($iconImage, true);
    imagecopyresampled($iconImage,
        $icon,
        0, 0,
        0, 0,
        $dimensions - ($padding * 2), $dimensions - ($padding * 2),
        $originalWidth, $originalHeight
    );
    imagecopy($final_image, $iconImage, $padding, $padding, 0, 0, $dimensions, $dimensions);
    ///
    if($demoMode) {
        $icon2 = imagecreatefrompng("../images/Mask.png");
        imagesavealpha($icon2, true);
        imagealphablending($icon2, true);
        imagecopy($final_image, $icon2, 0, 0, 0, 0, $dimensions, $dimensions);
    }
    ///
    imagealphablending($final_image,`8true);
    imagesavealpha($final_image, true);
    imagepng($final_image, NULL, 0, PNG_NO_FILTER);
    header("Content-Type: image/png");
    header("Content-Transfer-Encoding: Binary");
    $sizeName = "";
    if($includeSizeInDownloadNames) $sizeName = "-" . $dimensions;
    header("Content-disposition: attachment; filename='"$iconName".$sizeName.".png'""); 
?>