Witam,
Przy próbie wgrywania zdjęcia o rozszerzeniu .png występuje taki problem:

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Warning: imagecreatefromjpeg() [function.imagecreatefromjpeg]: gd-jpeg: JPEG library reports unrecoverable error: in /home/goo/public_html/adres.pl/widgets/thumbnail.inc.php on line 152
 
Warning: imagecreatefromjpeg() [function.imagecreatefromjpeg]: 'zdjecia/29.jpg' is not a valid JPEG file in /home/goo/public_html/adres.pl/widgets/thumbnail.inc.php on line 152
 
Warning: exif_read_data(29.jpg) [function.exif-read-data]: File not supported in /home/goo/public_html/adres.pl/widgets/thumbnail.inc.php on line 613
 
Warning: imagecopyresampled() expects parameter 2 to be resource, boolean given in /home/goo/public_html/adres.pl/widgets/thumbnail.inc.php on line 329
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Jeśli wgrywam zdjęcie .jpg to problem nie występuje. Jak to naprawić?

Tutaj linie:
152:

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<?
switch($this->format) {
                case 'GIF':
                    $this->oldImage = ImageCreateFromGif($this->fileName);
                    break;
                case 'JPG':
                    $this->oldImage = ImageCreateFromJpeg($this->fileName); //linia 152
                    break;
                case 'PNG':
                    $this->oldImage = ImageCreateFromPng($this->fileName);
                    break;
            }
?>
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linia 329

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<?
ImageCopyResampled(
			$this->workingImage,
			$this->oldImage,
			0,
			0,
			0,
			0,
			$this->newDimensions['newWidth'],
			$this->newDimensions['newHeight'],
			$this->currentDimensions['width'],
			$this->currentDimensions['height']
		);//linia 329
?>
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linia 613

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<?
if(function_exists("exif_read_data") && $this->format == 'JPG') {
			$imageData = exif_read_data($this->fileName);
			if(isset($imageData['Make'])) 
				$this->imageMeta['make'] = ucwords(strtolower($imageData['Make']));
			if(isset($imageData['Model'])) 
				$this->imageMeta['model'] = $imageData['Model'];
			if(isset($imageData['COMPUTED']['ApertureFNumber'])) {
				$this->imageMeta['aperture'] = $imageData['COMPUTED']['ApertureFNumber'];//linia619
				$this->imageMeta['aperture'] = str_replace('/','',$this->imageMeta['aperture']);
			}
			if(isset($imageData['ExposureTime'])) {
				$exposure = explode('/',$imageData['ExposureTime']);
				$exposure = round($exposure[1]/$exposure[0],-1);
				$this->imageMeta['exposure'] = '1/' . $exposure . ' second';
			}
			if(isset($imageData['Flash'])) {
				if($imageData['Flash'] > 0) {
					$this->imageMeta['flash'] = 'Yes';
				}
				else {
					$this->imageMeta['flash'] = 'No';
				}
			}
			if(isset($imageData['FocalLength'])) {
				$focus = explode('/',$imageData['FocalLength']);
				$this->imageMeta['focalLength'] = round($focus[0]/$focus[1],2) . ' mm';
			}
			if(isset($imageData['DateTime'])) {
				$date = $imageData['DateTime'];
				$date = explode(' ',$date);
				$date = str_replace(':','-',$date[0]) . ' ' . $date[1];
				$this->imageMeta['dateTaken'] = date('m/d/Y g:i A',strtotime($date));
			}
    	}
?>
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A tutaj cały kod thumbnail
http://zapisztekst.pl/116

Pozdrawiam