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pdf_open_ccitt
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pdf_open_ccitt

Name

pdf_open_ccitt — Opens a raw CCITT image

Synopsis

int pdf_open_ccitt(pdf, filename, width, height, bitreverse, compression, black); resource pdf: PDF object identifier string filename: Image filename int width: Image width int height: Image height int bitreverse: Bit reversal toggle int compression: Compression parameter int black: Black reversal

Returns

Image identifier

Description

Opens a raw CCITT G3 or G4 compresed image and returns an image identifier which can be passed to pdf_place_image() . All CCITT image analysis must be done by the client, thus if the PDF client does not suport the CCITT format than the image will not be displayed.

The bitreverse parameter toggles whether all bytes in the data are reversed.

compression specifies the type of compression in the image. -1 indicates G4 encoding. 0 indicates one dimensional G3 encoding, 1 indicates mixed one and two dimensional 3G encoding.

If black is set to 1, 1-bits are interpreted as black and 0-bits are interpreted as white. Normally, it is best to leave this value as 0.

Version

Since version 4.0.5

Example

Example 947. Open an image file

<?php

// create new document
$pdf = pdf_new();
pdf_open_file($pdf);
pdf_begin_page($pdf, 500, 700);

// turn on image warning
pdf_set_parameter($pdf, "imagewarning", "true");

// load and display image
$im = pdf_open_ccitt($pdf, "logo.bmp", 100, 100, 0, 1, 1);
pdf_place_image($pdf, $im, 50, 150, 1.0);
pdf_place_image($pdf, $im, 50, 350, 0.5);
pdf_close_image($im);

pdf_end_page($pdf);
pdf_close($pdf);

// output document
$data = pdf_get_buffer($pdf);
header("Content-type: application/pdf");
header("Content-disposition: inline; filename=test.pdf");
header("Content-length: " . strlen($data));
echo $data;
?>

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PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at http://www.opencontent.org/openpub/). The authors of this book have elected not to choose any options under the OPL. This online book was obtained from http://www.fooassociates.com/phpfer/ and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.