WP_Image_Editor_Imagick::pdf_load_source │ protected │ WP 5.6.0

Load the image produced by Ghostscript.

Includes a workaround for a bug in Ghostscript 8.70 that prevents processing of some PDF files when use-cropbox is set.

Method of the class: WP_Image_Editor_Imagick{}

No Hooks.

Returns

true|WP_Error.

Usage

// protected - for code of main (parent) or child class
$result = $this->pdf_load_source();

Changelog

WP_Image_Editor_Imagick::pdf_load_source() WP Image Editor Imagick::pdf load source code ^{WP 7.0.4}

protected function pdf_load_source() {
	$filename = $this->pdf_setup();

	if ( is_wp_error( $filename ) ) {
		return $filename;
	}

	foreach ( array( 'true', 'false' ) as $use_cropbox ) {
		try {
			/**
			 * When generating thumbnails from cropped PDF pages, Imagemagick uses the uncropped
			 * area (resulting in unnecessary whitespace) unless the following option is set.
			 *
			 * However, it sometimes fails, so if that happens, run it without the option.
			 *
			 * @ticket 48853
			 */
			$this->image->setOption( 'pdf:use-cropbox', $use_cropbox );

			/*
			 * Reading image after Imagick instantiation because `setResolution`
			 * only applies correctly before the image is read.
			 */
			if ( is_string( $this->stream_file_data ) ) {
				$this->image->setFilename( 'PDF:unknown.pdf[0]' );
				$this->image->readImageBlob( $this->stream_file_data, $this->image_given_name );
			} else {
				$this->image->readImage( $filename );
			}

			return true;
		} catch ( Exception $e ) {
			continue;
		}
	}

	return new WP_Error( 'invalid_image', __( 'File is not an image.' ), $this->file );
}