# PDF::API2

# NAME

PDF::API2 - The Next Generation API for creating and modifing PDFs.

# SYNOPSIS

    	use PDF::API2;

    	$pdf = PDF::API2->new;
    	$pdf = PDF::API2->open('some.pdf');
    	$page = $pdf->page;
    	$page = $pdf->openpage($pagenum);
    	$img = $pdf->image('some.jpg');
    	$font = $pdf->corefont('Times-Roman');
    	$font = $pdf->psfont('Times-Roman.pfb','Times-Roman.afm');
    	$font = $pdf->ttfont('TimesNewRoman.ttf');

# METHODS

## PDF::API2

$pdf = PDF::API->new %opts
| Creates a new pdf-file object. If you know beforehand to save the pdf to file you can give the '-file' option, to minimize possible memory requirements. Example:
    	$pdf = PDF::API2->new();
    	$pdf = PDF::API2->new(-file => 'ournew.pdf');
$pdf->preferences %opts
| Controls viewing=preferences for the pdf. Options:
    	-fullscreen ... Full-screen mode, with no menu bar, window controls, or any other window visible.
    	-thumbs ... Thumbnail images visible.
    	-outlines ... Document outline visible.
    	-singlepage ... Display one page at a time.
    	-onecolumn ... Display the pages in one column.
    	-twocolumnleft ... Display the pages in two columns, with oddnumbered pages on the left.
    	-twocolumnrigth ... Display the pages in two columns, with oddnumbered pages on the right.
    	-hidetoolbar ... Specifying whether to hide tool bars.
    	-hidemenubar ... Specifying whether to hide menu bars.
    	-hidewindowui ... Specifying whether to hide user interface elements.
    	-fitwindow ... Specifying whether to resize the document’s window to the size of the displayed page.
    	-centerwindow ... Specifying whether to position the document’s window in the center of the screen.
    	-displaytitle ... Specifying whether the window’s title bar should display the document title
    			taken from the Title entry of the document information dictionary.
    	-afterfullscreenthumbs ... Thumbnail images visible after Full-screen mode.
    	-afterfullscreenoutlines ... Document outline visible after Full-screen mode.
    	-firstpage => [ $pageobj, %opts] ... Specifying the page to be displayed,
    			plus one of the following options:
    		-fit => 1
    		Display the page designated by page, with its contents magnified just enough to
    		fit the entire page within the window both horizontally and vertically. If the
    		required horizontal and vertical magnification factors are different, use the
    		smaller of the two, centering the page within the window in the other dimension.
    		-fith => $top
    		Display the page designated by page, with the vertical coordinate top positioned
    		at the top edge of the window and the contents of the page magnified just enough
    		to fit the entire width of the page within the window.
    		-fitv => $left
    		Display the page designated by page, with the horizontal coordinate left positioned
    		at the left edge of the window and the contents of the page magnified just enough
    		to fit the entire height of the page within the window.
    		-fitr => [ $left, $bottom, $right, $top ]
    		Display the page designated by page, with its contents magnified just enough to
    		fit the rectangle specified by the coordinates left, bottom, right, and top
    		entirely within the window both horizontally and vertically. If the required
    		horizontal and vertical magnification factors are different, use the smaller of
    		the two, centering the rectangle within the window in the other dimension.
    		-fitb => 1
    		Display the page designated by page, with its contents magnified just enough
    		to fit its bounding box entirely within the window both horizontally and
    		vertically. If the required horizontal and vertical magnification factors are
    		different, use the smaller of the two, centering the bounding box within the
    		window in the other dimension.
    		-fitbh => $top
    		Display the page designated by page, with the vertical coordinate top
    		positioned at the top edge of the window and the contents of the page
    		magnified just enough to fit the entire width of its bounding box
    		within the window.
    		-fitbv => $left
    		Display the page designated by page, with the horizontal coordinate
    		left positioned at the left edge of the window and the contents of the page
    		magnified just enough to fit the entire height of its bounding box within the
    		window.
    		-xyz => [ $left, $top, $zoom ]
    		Display the page designated by page, with the coordinates (left, top) positioned
    		at the top-left corner of the window and the contents of the page magnified by
    		the factor zoom. A zero (0) value for any of the parameters left, top, or zoom
    		specifies that the current value of that parameter is to be retained unchanged.
Example:
    	$pdf->preferences(
    		-fullscreen => 1,
    		-onecolumn => 1,
    		-afterfullscreenoutlines => 1,
    		-firstpage => [ $pageobj , -fit => 1],
    	);
$pdf = PDF::API->open $pdffile
| Opens an existing PDF.
$page = $pdf->page
$page = $pdf->page $index
| Returns a new page object or inserts-and-returns a new page at $index. Note: on $index
    	-1 ... is inserted before the last page
    	1 ... is inserted before page number 1
    	0 ... is simply appended
$pageobj = $pdf->openpage $index
| Returns the pageobject of page $index. Note: on $index
    	-1,0 ... returns the last page
    	1 ... returns page number 1
$pageobj = $pdf->clonepage $sourceindex, $targetindex
| Returns the pageobject of page $targetindex, cloned from $sourceindex. Note: on $index
    	-1,0 ... returns the last page
    	1 ... returns page number 1
Beware: Under some circumstances, this method may cause $pdf->update to die. These circumstances remain unresolved but previously generated pdfs via API2 remain unaffected so far.
$pageobj = $pdf->importpage $sourcepdf, $sourceindex, $targetindex
| Returns the pageobject of page $targetindex, imported from $sourcepdf,$sourceindex. Note: on $index
    	-1,0 ... returns the last page
    	1 ... returns page number 1
Note: you can specify a page object instead as $targetindex so that the contents of the sourcepage will be 'merged into'.
$pagenumber = $pdf->pages
| Returns the number of pages in the document.
$pdf->mediabox $w, $h
$pdf->mediabox $llx, $lly, $urx, $ury
| Sets the global mediabox.
$pdf->update
| Updates a previously "opened" document after all changes have been applied.
$pdf->saveas $file
| Saves the document.
$string = $pdf->stringify
| Returns the document in a string.
$pdf->end
| Destroys the document.
%infohash $pdf->info %infohash
| Sets/Gets the info structure of the document. Example:
    	$pdf->info(
    		'Author'       => " Alfred Reibenschuh ",
    		'CreationDate' => "D:20020911000000+01'00'",
    		'ModDate'      => "D:YYYYMMDDhhmmssOHH'mm'",
    		'Creator'      => "fredos-script.pl",
    		'Producer'     => "PDF::API2",
    		'Title'        => "some Publication",
    		'Subject'      => "perl ?",
    		'Keywords'     => "all good things are pdf"
    	);
$pdf->finishobjects @objects
| Force objects to be written to file.
$val = $pdf->default $parameter
$pdf->default $parameter, $val
| Gets/Sets default values for the behaviour of ::API2.
$font = $pdf->corefont $fontname [, %options]
| Returns a new or existing adobe core font object. Examples:
    	$font = $pdf->corefont('Times-Roman');
    	$font = $pdf->corefont('Times-Bold');
    	$font = $pdf->corefont('Helvetica');
    	$font = $pdf->corefont('ZapfDingbats');
$font = $pdf->psfont $pfbfile,$afmfile
| Returns a new or existing adobe type1 font object. Examples:
    	$font = $pdf->psfont('Times-Book.pfb','Times-Book.afm');
    	$font = $pdf->psfont('/fonts/Synest-FB.pfb','/fonts/Synest-FB.afm');
    	$font = $pdf->psfont('../Highland-URW.pfb','../Highland-URW.afm');
$font = $pdf->ttfont $ttfile [, %options]
| Returns a new or existing truetype font object. Examples:
    	$font = $pdf->ttfont('TimesNewRoman.ttf');
    	$font = $pdf->ttfont('/fonts/Univers-Bold.ttf');
    	$font = $pdf->ttfont('../Democratica-SmallCaps.ttf');
$img = $pdf->image $file
| Returns a new image object from a file or a GD::Image object. Examples:
    	$img = $pdf->image('yetanotherfun.jpg');
    	$img = $pdf->image('truly24bitpic.png');
    	$img = $pdf->image('reallargefile.pnm');
    	$gdimgobj=GD::Image->newFromPng('truly24bitpic.png');
    	$img = $pdf->image($gdimgobj);
Important Note: This is an unmaintained function, please use one of the following for proper support: imagejpeg, imagepng, imagegd, imagepnm.
$img = $pdf->pdfimage $file, $page_number
| Returns a new image object, which is actually a page from another pdf. Examples:
    	$img = $pdf->pdfimage('test1.pdf',1);
    	$img = $pdf->pdfimage('another-test.pdf',2);
    	$img = $pdf->pdfimage('really-large.pdf',1000);
$img = $pdf->pdfimageobj $pdfobj, $page_number
| As $pdf->pdfimage, but takes an already opened pdfobject (API2->open) as parameter. Note: This is functionally the same as the one above, but far less resource-intensive, if you use many pages (possible the same) from one single pdf.
$shadeing = $pdf->shade
| Returns a new shading object.
$pat = $pdf->pattern
| Returns a new pattern object.
$cs = $pdf->colorspace %parameters
| Returns a new colorspace object. Examples:
    	$cs = $pdf->colorspace(
    		-type => 'CalRGB',
    		-whitepoint => [ 0.9, 1, 1.1 ],
    		-blackpoint => [ 0, 0, 0 ],
    		-gamma => [ 2.2, 2.2, 2.2 ],
    		-matrix => [
    			0.41238, 0.21259, 0.01929,
    			0.35757, 0.71519, 0.11919,
    			0.1805,  0.07217, 0.95049
    		]
    	);
    	$cs = $pdf->colorspace(
    		-type => 'CalGray',
    		-whitepoint => [ 0.9, 1, 1.1 ],
    		-blackpoint => [ 0, 0, 0 ],
    		-gamma => 2.2
    	);
    	$cs = $pdf->colorspace(
    		-type => 'Lab',
    		-whitepoint => [ 0.9, 1, 1.1 ],
    		-blackpoint => [ 0, 0, 0 ],
    		-gamma => [ 2.2, 2.2, 2.2 ],
    		-range => [ -100, 100, -100, 100 ]
    	);
    	$cs = $pdf->colorspace(
    		-type => 'Indexed',
    		-base => 'DeviceRGB',
    		-maxindex => 3,
    		-whitepoint => [ 0.9, 1, 1.1 ],
    		-blackpoint => [ 0, 0, 0 ],
    		-gamma => [ 2.2, 2.2, 2.2 ],
    		-colors => [
    			[ 0,0,0 ],	# black = 0
    			[ 1,1,1 ],	# white = 1
    			[ 1,0,0 ],	# red = 2
    			[ 0,0,1 ],	# blue = 3
    		]
    	);
    	$cs = $pdf->colorspace(
    		-type => 'ICCBased',
    		-base => 'DeviceRGB',
    		-components => 3,
    		-iccfile => 'codacus.icc'
    	);
@color = $pdf->businesscolor $basecolor [, $lightdark ]
@color = $pdf->businesscolor $colornumber [, $lightdark ]
| Returns a color-array suitible for use with the stroke/fillcolor methods.
$img = $pdf->barcode %options
| Returns a new barcode object. Note: refer to PDF::API2::Barcode for more details.
$egs = $pdf->extgstate
| Returns a new extended-graphics-state object.
$otls = $pdf->outlines
| Returns a new or existing outlines object.
$page->resource $type, $key, $obj, $force
| Adds a resource to the global page-inheritance tree. Example:
    	$pdf->resource('Font',$fontkey,$fontobj);
    	$pdf->resource('XObject',$imagekey,$imageobj);
    	$pdf->resource('Shading',$shadekey,$shadeobj);
    	$pdf->resource('ColorSpace',$spacekey,$speceobj);
Note: You only have to add the required resources, if they are NOT handled by the *font*, *image*, *shade* or *space* methods.

# AUTHOR

alfred reibenschuh