bobdole Posted June 7, 2013 Share Posted June 7, 2013 I keep getting the error: 'watermark.png' is not a valid PNG file in This is the same no matter how many generic watermark scripts I use. So the question is... Where am I supposed to have my watermark.png located? Is it supposed to be on mydomain.com/watermark.png or what? Here is the code: <html> <head> </head> <body> <form action="watermark-image.php" method="post" enctype="multipart/form-data"> Select a file to upload for processing<br> <input type="file" name="File1"><br> <input type="submit" value="Submit File"> </form> </body> </html> <?php /* * PHP function to image-watermark an image * http://salman-w.blogspot.com/2008/11/watermark-your-images-with-another.html * * Writes the given watermark image on the specified image * and saves the result as another image */ define('WATERMARK_OVERLAY_IMAGE', 'watermark.png'); define('WATERMARK_OVERLAY_OPACITY', 50); define('WATERMARK_OUTPUT_QUALITY', 90); function create_watermark($source_file_path, $output_file_path) { list($source_width, $source_height, $source_type) = getimagesize($source_file_path); if ($source_type === NULL) { return false; } switch ($source_type) { case IMAGETYPE_GIF: $source_gd_image = imagecreatefromgif($source_file_path); break; case IMAGETYPE_JPEG: $source_gd_image = imagecreatefromjpeg($source_file_path); break; case IMAGETYPE_PNG: $source_gd_image = imagecreatefrompng($source_file_path); break; default: return false; } $overlay_gd_image = imagecreatefrompng(WATERMARK_OVERLAY_IMAGE); $overlay_width = imagesx($overlay_gd_image); $overlay_height = imagesy($overlay_gd_image); imagecopymerge( $source_gd_image, $overlay_gd_image, $source_width - $overlay_width, $source_height - $overlay_height, 0, 0, $overlay_width, $overlay_height, WATERMARK_OVERLAY_OPACITY ); imagejpeg($source_gd_image, $output_file_path, WATERMARK_OUTPUT_QUALITY); imagedestroy($source_gd_image); imagedestroy($overlay_gd_image); } /* * Uploaded file processing function */ define('UPLOADED_IMAGE_DESTINATION', 'uploads/'); define('PROCESSED_IMAGE_DESTINATION', 'images/'); function process_image_upload($Field) { $temp_file_path = $_FILES[$Field]['tmp_name']; $temp_file_name = $_FILES[$Field]['name']; list(, , $temp_type) = getimagesize($temp_file_path); if ($temp_type === NULL) { return false; } switch ($temp_type) { case IMAGETYPE_GIF: break; case IMAGETYPE_JPEG: break; case IMAGETYPE_PNG: break; default: return false; } $uploaded_file_path = UPLOADED_IMAGE_DESTINATION . $temp_file_name; $processed_file_path = PROCESSED_IMAGE_DESTINATION . preg_replace('/\\.[^\\.]+$/', '.jpg', $temp_file_name); move_uploaded_file($temp_file_path, $uploaded_file_path); $result = create_watermark($uploaded_file_path, $processed_file_path); if ($result === false) { return false; } else { return array($uploaded_file_path, $processed_file_path); } } /* * Here is how to call the function(s) */ $result = process_image_upload('File1'); if ($result === false) { echo '<br>An error occurred during file processing.'; } else { echo '<br>Original image saved as <a href="' . $result[0] . '" target="_blank">' . $result[0] . '</a>'; echo '<br>Watermarked image saved as <a href="' . $result[1] . '" target="_blank">' . $result[1] . '</a>'; } ?> Quote Link to comment Share on other sites More sharing options...
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