I have found a tutorial to create thumbnails on the fly. This is the code: [code] # Constants define(IMAGE_BASE, './images'); define(MAX_WIDTH, 200); define(MAX_HEIGHT, 200); function show_thumbnail($image, $dirname) { # Get image location $image_path = IMAGE_BASE . "/" . $dirname . "/" . $image; # Load image $img = null; $ext = strtolower(end(explode('.', $image))); if ($ext == 'jpg' || $ext == 'jpeg') { $img = @imagecreatefromjpeg($image_path); } else if ($ext == 'png') { $img = @imagecreatefrompng($image_path); # Only if your version of GD includes GIF support } else if ($ext == 'gif') { $img = @imagecreatefrompng($image_path); } # If an image was successfully loaded, test the image for size if ($img) { # Get image size and scale ratio $width = imagesx($img); $height = imagesy($img); $scale = min(MAX_WIDTH/$width, MAX_HEIGHT/$height); # If the image is larger than the max shrink it if ($scale < 1) { $new_width = floor($scale*$width); $new_height = floor($scale*$height); # Create a new temporary image $tmp_img = imagecreatetruecolor($new_width, $new_height); # Copy and resize old image into new image imagecopyresized($tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height); imagedestroy($img); $img = $tmp_img; } }# Create error image if necessary if (!$img) { $img = imagecreate(MAX_WIDTH, MAX_HEIGHT); imagecolorallocate($img,0,0,0); $c = imagecolorallocate($img,70,70,70); imageline($img,0,0,MAX_WIDTH,MAX_HEIGHT,$c2); imageline($img,MAX_WIDTH,0,0,MAX_HEIGHT,$c2); } # Display the image header("Content-type: image/jpeg"); imagejpeg($img); } [/code] I have a page of large images, and i want to make thumbnails of them, without creating a new file. Just to decrease the file size. The problem is, when I try this for one image: For example: show_thumbnail("Foto 005.jpg", "test2"); I get this output: [!--quoteo--][div class=\'quotetop\']QUOTE[/div][div class=\'quotemain\'][!--quotec--] Warning: Cannot modify header information - headers already sent by (output started at c:\program files\easyphp1-8\www\speelschare\index.php:23) in c:\program files\easyphp1-8\www\speelschare\sources\fotos\test2.php on line 59 ÿØÿàJFIFÿþ>CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), default quality ÿÛC $.' ",#(7),01444'9=82<.342ÿÛC 2!!22222222222222222222222222222222222222222222222222ÿÀÈÈ"ÿÄ ÿĵ}!1AQa"q2?‘¡#B±ÁRÑð$3br‚ %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyzƒ„…†‡ˆ‰Š’“”•–—˜™š¢£¤¥¦§¨©ª²³´µ¶·¸¹ºÂÃÄÅÆÇÈÉÊÒÓÔÕÖ×ØÙÚáâãäåæçèéêñòóôõö÷øùúÿÄ ÿĵw!1AQaq"2?B‘¡±Á #3RðbrÑ $4á%ñ&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz‚ƒ„…†‡ˆ‰Š’“”•–—˜™š¢£¤¥¦§¨©ª²³´µ¶·¸¹ºÂÃÄÅÆÇÈÉÊÒÓÔÕÖ×ØÙÚâãäåæçèéêòóôõö÷øùúÿÚ ?ùþŠ( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( Š( ÿÙ [/quote] I wanted to put the header on line 1, but the problem is that my page is not only one image, but also html and flash... Could anyone help me plz?