Quick and dirty example, that works:
// load pdf file
$pdf = Zend_Pdf::load('FILENAME');
// Create new Style
$style = new Zend_Pdf_Style();
$fontH = Zend_Pdf_Font::fontWithName(Zend_Pdf_Font::FONT_HELVETICA_BOLD);
$style->setFont($fontH, 32);
// Mark page as modified
foreach ($pdf->pages as $page){
$page->saveGS()
->setAlpha(0.25)
->setStyle($style)
->rotate(0, 0, M_PI_2/3);
$page->drawText('Modified by Zend Framework!', 150, 0)
->restoreGS();
}
// send to browser as file download
header("Content-Disposition: inline; filename=result.pdf");
header("Content-type: application/x-pdf");
echo $pdf->render();
If produces a pdf with the text "Modified by Zend Framework!" toward the
bottom of the file, on all the pages.
-----Original Message-----
From: Terre Porter [mailto:[email protected]]
Sent: Friday, August 07, 2009 12:12 PM
To: [email protected]
Subject: RE: [fw-general] Zend_pdf doesn't commit changes
Did you try something like this after you add your water mark?
header("Content-Disposition: inline; filename=result.pdf");
header("Content-type: application/x-pdf"); echo $pdf->render();
I'm just now getting to a point to start using Zend_PDF so i've not tested
this yet.
Terre
-----Original Message-----
From: Tim Everson [mailto:[email protected]]
Sent: Friday, August 07, 2009 11:30 AM
To: [email protected]
Subject: Re: [fw-general] Zend_pdf doesn't commit changes
The initial problem is still there - changes are not rendered in the
document until it is saved, so how do I commit inline changes to stream to
the browser? This is a common problem I am sure, to stamp a document with a
watermark before rendering it to the browser, but without changing the
original document. It is possible to work around by creating a temporary
file, then streaming that, but this causes potential file access conflicts
from users requesting the same file, and housecleaning and potential
permission problems that should not be there - plus it adds significant
overhead to an already memory intensive operation (it takes a while to read,
watermark, save, and re-read an 800 page PDF).
If anyone has any insight, please help out a Zend framework newb.
Regards,
Tim Everson
Tim Everson wrote:
>
> I am trying to modify a document in memory and then render the result
> to the browser without actually changing the document. This sounds
> easy, with Zend_pdf->render(), but I am finding that my changes to the
> document are not in the rendered document. So to workaround, I assume
> I must save the document to a temporary file, then open THAT file in a
> new zend_pdf object and render it to the browser, right? Wrong again.
> I am baffled to find that the originally opened document is actually
> rendered instead, no changes applied. After the script runs, if I
> manually open the temporary PDF file it created, my changes are there.
>
> Is there some sort of commit action that must be performed to get the
> changes to render before the script ends? I cannot find an instance
> of anyone talking about this before - maybe its just me. Here's my code:
>
> if(isset($argv[1])){
> $srcPDF = $argv[1];
>
> try{
> $ZendPDF = & new Zend_Pdf($srcPDF, 0, true);
> /**
> * Stamp each page "UNRELEASED" in transparent gray Helvetica
> */
>
> $font = Zend_Pdf_Font::fontWithName(Zend_Pdf_Font::FONT_HELVETICA);
> $color = new Zend_Pdf_Color_Html('#000000'); //black
>
> foreach($ZendPDF->pages AS $PDFpg){
> //calculate the fontsize to use based on the dimensions of the page
> $fontSize = intval($PDFpg->getHeight() / 10);
> $PDFpg->rotate(($PDFpg->getWidth() / 2), ($PDFpg->getHeight() /
> 2),
> 45)
> ->setFont($font, $fontSize)
> ->setFillColor($color) //also sets font color
> ->setAlpha(0.2) //half opaque
> ->drawText('U N R E L E A S E D', ($PDFpg->getWidth() / 2)
> -
> (4 * $fontSize), ($PDFpg->getHeight() / 2) - ($fontSize / 2) );
> }
>
>
> //page changes are NOT committed at this point
> echo $ZendPDF->render(); //renders string data back to caller
> unset($ZendPDF);
>
> }
> catch (Zend_Exception $e) {
> die("Caught exception: " . get_class($e) . "\n" . "Message: " .
> $e->getMessage() . "\n");
> }
> } else {
> die("No source file");
> }
>
--
View this message in context:
http://www.nabble.com/Zend_pdf-doesn%27t-commit-changes-tp24850906p24866882.
html
Sent from the Zend Framework mailing list archive at Nabble.com.
