Pdf.php

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Zend Framework

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Category: Zend
Copyright: Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
License: New BSD License
Package: Zend_Pdf
Version: $Id$

\Zend_Pdf
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Package: Zend_Pdf

General entity which describes PDF document.

It implements document abstraction with a document level operations. Class is used to create new PDF document or load existing document. See details in a class constructor description Class agregates document level properties and entities (pages, bookmarks, document level actions, attachments, form object, etc)

Category: Zend
Copyright: Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
License: New BSD License

Constants

 
                PDF_VERSION
                = '1.4'

Version number of generated PDF documents.

 
                PDF_HEADER
                = "%PDF-1.4\n%\xE2\xE3\xCF\xD3\n"

PDF file header.

Properties

array $_inheritableAttributes = array('Resources', 'MediaBox', 'CropBox', 'Rotate')

static

List of inheritable attributesfor pages tree

Default valuearray('Resources', 'MediaBox', 'CropBox', 'Rotate')Details

Type: array

boolean $_isNewDocument = true

True if the object is a newly created PDF document (affects save() method behavior) False otherwise

Default valuetrueDetails

Type: boolean

string $_javaScript = null

Document level javascript

Default valuenullDetails

Type: string

\Zend_Memory_Manager|null $_memoryManager = null

static

Memory manager for stream objects

Default valuenullDetails

Type: \Zend_Memory_Manager | null

array $_namedTargets = array()

Document named destinations or "GoTo.

.." actions, used to refer document parts from outside PDF

Default valuearray()Details

Type: array

\Zend_Pdf_ElementFactory_Interface $_objFactory = null

PDF objects factory.

Default valuenullDetails

Type: \Zend_Pdf_ElementFactory_Interface

integer $_originalOpenOutlinesCount = 0

Original document outlines open elements count Used to track outlines update

Default value0Details

Type: integer

array $_originalOutlines = array()

Original document outlines list Used to track outlines update

Default valuearray()Details

Type: array

array $_originalProperties = array()

Original properties set.

Used for tracking properties changes

Default valuearray()Details

Type: array

array $_pageNumbers = null

Pages collection hash: => Zend_Pdf_Page

Default valuenullDetails

Type: array

\SplObjectStorage $_pageReferences = null

Pages collection hash: => Zend_Pdf_Page

Default valuenullDetails

Type: \SplObjectStorage

\Zend_Pdf_Parser $_parser

Pdf file parser.

It's not used, but has to be destroyed only with Zend_Pdf object

Details

Type: \Zend_Pdf_Parser

\Zend_Pdf_Trailer $_trailer = null

Pdf trailer (last or just created)

Default valuenullDetails

Type: \Zend_Pdf_Trailer

array $outlines = array()

Document outlines

Default valuearray()Details

Type: array

array $pages = array()

Pages collection

Default valuearray()Details

Type: array
Todo: implement it as a class, which supports ArrayAccess and Iterator interfaces, to provide incremental parsing and pages tree updating. That will give good performance and memory (PDF size) benefits.

array $properties = array()

Document properties

It's an associative array with PDF meta information, values may be string, boolean or float. Returned array could be used directly to access, add, modify or remove document properties. Standard document properties: Title (must be set for PDF/X documents), Author, Subject, Keywords (comma separated list), Creator (the name of the application, that created document, if it was converted from other format), Trapped (must be true, false or null, can not be null for PDF/X documents)

Default valuearray()Details

Type: array

Methods

__construct(string $source = null, integer $revision = null, $load = false) : \Zend_Pdf

Creates or loads PDF document.

If $source is null, then it creates a new document. If $source is a string and $load is false, then it loads document from a binary string. If $source is a string and $load is true, then it loads document from a file. $revision used to roll back document to specified version (0 - current version, 1 - previous version, 2 - ...)

Parameters

Name	Type	Description
$source	string	PDF file to load
$revision	integer
$load

Returns

Type	Description
\Zend_Pdf

Throws

Exception	Description
\Zend_Pdf_Exception

_cleanUpAction(\Zend_Pdf_Action $action, $refreshPageCollectionHashes = true) : \Zend_Pdf_Action | null

Walk through action and its chained actions tree and remove nodes if they are GoTo actions with an unresolved target.

Returns null if root node is deleted or updated action overwise.

Parameters

Name	Type	Description
$action	\Zend_Pdf_Action
$refreshPageCollectionHashes

Returns

Type	Description
\Zend_Pdf_Action \| null

Details

Todo: Give appropriate name and make method public

_dumpNamedDestinations() : void

Dump named destinations

Details

Todo: Create a balanced tree instead of plain structure.

_dumpOutlines() : void

Dump outlines recursively

_dumpPages() : void

Orginize pages to tha pages tree structure.

Details

Todo: atomatically attach page to the document, if it's not done yet.
Todo: check, that page is attached to the current document
Todo: Dump pages as a balanced tree instead of a plain set.

_loadNamedDestinations(\Zend_Pdf_Element_Reference $root, string $pdfHeaderVersion) : void

Load named destinations recursively

Parameters

Name	Type	Description
$root	\Zend_Pdf_Element_Reference	Document catalog entry
$pdfHeaderVersion	string

Throws

Exception	Description
\Zend_Pdf_Exception

_loadOutlines(\Zend_Pdf_Element_Reference $root) : void

Load outlines recursively

Parameters

Name	Type	Description
$root	\Zend_Pdf_Element_Reference	Document catalog entry

_loadPages(\Zend_Pdf_Element_Reference $pages, array | null $attributes = array()) : void

Load pages recursively

Parameters

Name	Type	Description
$pages	\Zend_Pdf_Element_Reference
$attributes	array \| null

_refreshPagesHash() : \Zend_Pdf

Refresh page collection hashes

Returns

Type	Description
\Zend_Pdf

extractFont( $fontName) : \Zend_Pdf_Resource_Font_Extracted | null

Extract font attached to the page by specific font name

$fontName should be specified in UTF-8 encoding

Parameters

Name	Type	Description
$fontName

Returns

Type	Description
\Zend_Pdf_Resource_Font_Extracted \| null

Throws

Exception	Description
\Zend_Pdf_Exception

extractFonts() : array

Extract fonts attached to the document

returns array of Zend_Pdf_Resource_Font_Extracted objects

Returns

Type	Description
array

Throws

Exception	Description
\Zend_Pdf_Exception

getJavaScript() : string

Return the document-level JavaScript or null if there is no JavaScript for this document

Returns

Type	Description
string

getMemoryManager() : \Zend_Memory_Manager

static

Request used memory manager

Returns

Type	Description
\Zend_Memory_Manager

getMetadata() : string

Return the document-level Metadata or null Metadata stream is not presented

Returns

Type	Description
string

getNamedDestination(string $name) : \Zend_Pdf_Destination_Explicit | \Zend_Pdf_Action_GoTo

Return specified named destination

Parameters

Name	Type	Description
$name	string

Returns

Type	Description
\Zend_Pdf_Destination_Explicit \| \Zend_Pdf_Action_GoTo

getNamedDestinations() : array

Return an associative array containing all the named destinations (or GoTo actions) in the PDF.

Named targets can be used to reference from outside the PDF, ex: 'http://www.something.com/mydocument.pdf#MyAction'

Returns

Type	Description
array

getOpenAction() : \Zend_Pdf_Target

Get open Action Returns Zend_Pdf_Target (Zend_Pdf_Destination or Zend_Pdf_Action object)

Returns

Type	Description
\Zend_Pdf_Target

load(string $source = null, integer $revision = null) : \Zend_Pdf

static

Load PDF document from a file

Parameters

Name	Type	Description
$source	string
$revision	integer

Returns

Type	Description
\Zend_Pdf

newPage(mixed $param1, mixed $param2 = null) : \Zend_Pdf_Page

Create page object, attached to the PDF document.

Method signatures: 1. Create new page with a specified pagesize. If $factory is null then it will be created and page must be attached to the document to be included into output. --------------------------------------------------------- new Zend_Pdf_Page(string $pagesize); --------------------------------------------------------- 2. Create new page with a specified pagesize (in default user space units). If $factory is null then it will be created and page must be attached to the document to be included into output. --------------------------------------------------------- new Zend_Pdf_Page(numeric $width, numeric $height); ---------------------------------------------------------

Parameters

Name	Type	Description
$param1	mixed
$param2	mixed

Returns

Type	Description
\Zend_Pdf_Page

parse(string $source = null, integer $revision = null) : \Zend_Pdf

static

Create new PDF document from a $source string

Parameters

Name	Type	Description
$source	string
$revision	integer

Returns

Type	Description
\Zend_Pdf

pdfDate(integer $timestamp = null) : string

static

Convert date to PDF format (it's close to ASN.1 (Abstract Syntax Notation One) defined in ISO/IEC 8824).

Parameters

Name	Type	Description
$timestamp	integer	(optional) If omitted, uses the current time.

Returns

Type	Description
string

Details

Todo: This really isn't the best location for this method. It should probably actually exist as Zend_Pdf_Element_Date or something like that.
Todo: Address the following E_STRICT issue: PHP Strict Standards: date(): It is not safe to rely on the system's timezone settings. Please use the date.timezone setting, the TZ environment variable or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier.

render(boolean $newSegmentOnly = false, resource $outputStream = null) : string

Render the completed PDF to a string.

If $newSegmentOnly is true and it's not a new document, then only appended part of PDF is returned.

Parameters

Name	Type	Description
$newSegmentOnly	boolean
$outputStream	resource

Returns

Type	Description
string

Throws

Exception	Description
\Zend_Pdf_Exception

resolveDestination(\Zend_Pdf_Destination $destination, $refreshPageCollectionHashes = true) : \Zend_Pdf_Page | null

Resolve destination.

Returns Zend_Pdf_Page page object or null if destination is not found within PDF document.

Parameters

Name	Type	Description
$destination	\Zend_Pdf_Destination	Destination to resolve
$refreshPageCollectionHashes

Returns

Type	Description
\Zend_Pdf_Page \| null

Throws

Exception	Description
\Zend_Pdf_Exception

revisions() : integer

Retrive number of revisions.

Returns

Type	Description
integer

rollback(integer $steps) : void

Rollback document $steps number of revisions.

This method must be invoked before any changes, applied to the document. Otherwise behavior is undefined.

Parameters

Name	Type	Description
$steps	integer

save(string $filename, boolean $updateOnly = false) : void

Render PDF document and save it.

If $updateOnly is true and it's not a new document, then it only appends new section to the end of file.

Parameters

Name	Type	Description
$filename	string
$updateOnly	boolean

Throws

Exception	Description
\Zend_Pdf_Exception

setJavaScript(string $javascript) : void

Set the document-level JavaScript

Parameters

Name	Type	Description
$javascript	string

setMemoryManager(\Zend_Memory_Manager $memoryManager) : void

static

Set user defined memory manager

Parameters

Name	Type	Description
$memoryManager	\Zend_Memory_Manager

setMetadata(string $metadata) : void

Sets the document-level Metadata (mast be valid XMP document)

Parameters

Name	Type	Description
$metadata	string

setNamedDestination(string $name, $destination = null) : void

Set specified named destination

Parameters

Name	Type	Description
$name	string
$destination

setOpenAction(\Zend_Pdf_Target $openAction = null) : void

Set open Action which is actually Zend_Pdf_Destination or Zend_Pdf_Action object

Parameters

Name	Type	Description
$openAction	\Zend_Pdf_Target

Details

Returns: Zend_Pdf

Pdf.php

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Constants

Properties

Methods

\Zend_Pdf
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