I generate a PDF with DOMPDF from my html design.
But i need to disable the copy + select function inside the pdf text.
I guess a jpg version of the html page would be a good solution inside the pdf but i'm not sure if this is possible.
Any idea or solution for rendering the pdf file non selectable (as a jpg maybe)
Below renders my A4 format html design:
$html = mb_convert_encoding($pdf_html, 'HTML-ENTITIES', 'UTF-8');
$dompdf->loadHtml($html);
$dompdf->setPaper('A4', 'portrait');
$dompdf->render();
$dompdf->stream("dompdf_out.pdf", array("Attachment" => false));
Thanks
I have tested this answer and it works in Adobe Reader. The first two arguments are passwords, if you make them empty the document will open without a password.
However this copy prevention does not work, for instance, in the build-in PDF reader of Firefox. So reliable protection from copying doesn't seem possible.
However, now you know how you can password protect a file, and that could be a good solution as well? After all, if someone cannot access a PDF they cannot copy it.
Related
I switched from TCPDF to domPDF because it seems more convenient to handle when creating invoices from html to pdf (I am rather a low pro on PHP :)). Now that I created the html file as a PDF file I recognized it does not output any PHP in the PDF - since the data from my sql databanks should fill the PDF it is kinda a problem.
I saw that you can enable PHP in the options.php included in the src-folder and I tried to do like it is written in the manual (and also tried various other code lines) but it just doesn't want to work:
$root = realpath($_SERVER["DOCUMENT_ROOT"]);
require_once ("$root/../xxx/dompdf/autoload.inc.php");
use Dompdf\Dompdf;
use Dompdf\Options;
$options = new Options();
$options->setIsPhpEnabled('true');
$dompdf = new Dompdf($options);
$dompdf->loadHtml(file_get_contents("testdomhtml.php"));
$dompdf->setPaper('A4', 'portrait');
$dompdf->render();
$dompdf->stream("bla",array("Attachment"=>0));
The PDF is shown but without the input from any PHP code.
If someone would be so kind, I would also be interested in knowing why and in how far enabling PHP is a security risk since I actually want to use that for my business. Would it be more advisable to wrap it all up in the main php file without loading external html and css files?
Thanks a lot in advance!
You could do something like this (not tested the code). Replace
$dompdf->loadHtml(file_get_contents("testdomhtml.php"));
With
ob_start();
include 'testdomhtml.php';
$output = ob_get_clean();
$dompdf->loadHtml($output);
More options How to execute and get content of a .php file in a variable?
Your file_get_contents("testdomhtml.php") will get actual content of file and will not execute any code inside it. Instead make it web accessible and pass URL to this page:
$dompdf->load_html_file('http://yourdomain.ext/testdomhtml.php');
I am using Codeigniter as a PHP framework and DOM PDF to generate pdf files. I have the following codes in my Controller.
// Some other codes
include_once('dompdf/dompdf_config.inc.php');
$dompdf = new DOMPDF();
$base_path = $_SERVER['DOCUMENT_ROOT'];
$dompdf->load_html($html);
$dompdf->render();
$dompdf->stream("invoice_$studentid.pdf");
redirect("my_Controller");
The problem is after generating the pdf file it is not redirecting to the Controller. Could you please tell me how to solve this problem?
$dompdf->stream is sending the PDF to the browser. You can't also send a redirect header. You're trying to output two responses to one request, which is impossible.
This doesn't seem like it should be a problem. The browser will stay on whichever page the user was on when they clicked the link to download the PDF. If you really want them to be forced elsewhere (you probably don't, that's a very different user experience from how download links work everywhere else) you could do something with JavaScript.
I have a page that uses the glob function and file_get_contents to have a few html files and store them in the buffer.
So I want to convert this buffer ob_get_contents() to an pdf file.
What is the best way to do that? how?
Thanks in advance.
For creating PDF files from HTML and CSS, check out DOMpdf.
While this solution doesn't support the full range of HTML and CSS and its rendering can be a pain sometimes, it has one advantage: it does not require any special binaries to be installed (like wkhtmltopdf). It should run on your average shared PHP hosting.
Usage example:
<?php
require_once("dompdf_config.inc.php");
$html =
'<html><body>'.
'<p>Put your html here, or generate it with your favourite '.
'templating system.</p>'.
'</body></html>';
$dompdf = new DOMPDF();
$dompdf->load_html($html);
$dompdf->render();
$dompdf->stream("sample.pdf");
?>
why using the outputbuffer for this? you have it in variables using file_get_contents and can simply create your pdf with the data from the variables. when using ob_get_contents all it does is return the outputbuffer and what you normally do with the result is saving into a variable...
btw. you do want to convert html into pdf? If yes have a look at wkhtmltopdf
If ob_get_contents contains html files they are so many solutions out there that can achieve what you want. I think you should look at the following
PrinceXML
FPDF
TCPDF
HTML to PDF converter (PHP5)
wkhtmltopdf
Example using Simple HTML 2 PDF using PHP
$html = ob_get_contents();
ob_end_clean();
$pdf = new HTML2FPDF();
$pdf->SetTopMargin(1);
$pdf->AddPage();
$pdf->WriteHTML($html);
$pdf->Output('test.pdf','D');
I have been looking and testing this for a couple days now and was wondering if anyone could point me in a different direction. I have a very long job application HTML form (jobapp.html) and a matching PDF (jobpdf.pdf) that have the same field names for all entries in both the HTML form and the PDF. I need to take the user data that is entered in the form and convert it to a PDF. This is what I have gathered so far but don't know if I am on track:
Is pdftk the only viable 3rd party app to accomplish this?
Using pdftk would i take the $_POST data collected for the user and generate a .fdf(user.fdf) then flatten the .fdf on the .pdf(job.pdf). So irreguarless of where the fields are located on each document the information on the fdf would populate the pdf by field names?
I have been trying
http://koivi.com/fill-pdf-form-fields/tutorial.php
I have also looked at "Submit HTML form to PDF"
I have used fpdf several times to create php-based pdf documents. An example following:
require('fpdf.php');
$pdf = new FPDF();
$pdf->AddFont('georgia', '', 'georgia.php');
$pdf->AddFont('georgia', 'B', 'georgiab.php');
$pdf->AddFont('georgia', 'I', 'georgiai.php');
# Add UTF-8 support (only add a Unicode font)
$pdf->AddFont('freesans', '', 'freesans.php', true);
$pdf->SetFont('freesans', '', 12);
$pdf->SetTitle('My title');
$pdf->SetAuthor('My author');
$pdf->SetDisplayMode('fullpage', 'single');
$pdf->SetLeftMargin(20);
$pdf->SetRightMargin(20);
$pdf->AddPage();
$pdf->Cell(40,10,'Hello World!');
$pdf->Output();
You can learn very fast with these tutorials from the website itself.
EDIT: Example to save form data: (yes, is very easy...)
require('fpdf.php');
$pdf = new FPDF();
$pdf->AddPage();
foreach ($_POST as $key =>$data)
{
$pdf->Write(5, "$key: $data"); //write
$pdf->Ln(10); // new line
}
$pdf->Output($path_to_file . 'file.txt','F'); // save to file
Look at these pages created with fpdf, really!
http://www.fpdf.org/
That would be the library to do it. I used it here to add images to a form and submit it to create a PDF with those images: http://productionlocations.com/locations
The actual code to do it is pretty complex.
I have found PrinceXML very easy to use. It takes your HTML/XML, applies CSS, and converts it into a PDF. The PHP extensions work very well. Unfortunately, it's not free.
One way you can consider is using an online API that converts any HTML to PDF. You can send them a generated HTML (easier to produce) that will contains your user's submitted data, and receive back a high fidelity PDF.
There are quite a few services available on the market. I like to mention PDFShift because it offers a package in PHP that simplifies the work for you.
Once you've installed it (using Composer, or downloaded it directly, depending on your choices) you can quickly convert an HTML document like this:
require_once('vendor/autoload.php');
use \PDFShift\PDFShift;
PDFShift::setApiKey('{your api key}');
PDFShift::convertTo('https://link/to/your/html', null, 'invoice.pdf');
And that's it. There are quite a few features you can implement (accessing secured documents, adding a watermark, and more).
Hope that helps!
In a web app developed in PHP we are generating Quotations and Invoices (which are very simple and of single page) using TCPDF lib.
The lib is working just great but it seems to generate very large PDF files. For example in our case it is generating PDF files as large as 4 MB (+/- a few KB).
How to reduce this bloating of PDF files generated by TCPDF?
Here is code snippet that I am using
ob_start();
include('quote_view_bag_pdf.php'); //This file is valid HTML file with PHP code to insert data from DB
$quote = ob_get_contents(); //Capture the content of 'quote_view_bag_pdf.php' file and store in variable
ob_end_clean();
//Code to generate PDF file for this Quote
//This line is to fix a few errors in tcpdf
$k_path_url='';
require_once('tcpdf/config/lang/eng.php');
require_once('tcpdf/tcpdf.php');
// create new PDF document
$pdf = new TCPDF();
// remove default header/footer
$pdf->setPrintHeader(false);
$pdf->setPrintFooter(false);
// add a page
$pdf->AddPage();
// print html formated text
$pdf->writeHtml($quote, true, 0, true, 0); //Insert Variables contents here.
//Build Out File Name
$pdf_out_file = "pdf/Quote_".$_POST['quote_id']."_.pdf";
//Close and output PDF document
$pdf->Output($pdf_out_file, 'F');
$pdf->Output($pdf_out_file, 'I');
///////////////
enter code here
Hope this code fragment will give some idea?
You need to see what it is putting inside the PDF. Is it embedding lots of images or fonts?
You can examine the contents with lots of PDFtools. If you have Acrobat 9.0, there is a blog article showing how to do this at http://pdf.jpedal.org/java-pdf-blog/bid/10479/Viewing-PDF-objects
Finally I have managed to solve the problem.
The problem was that by mistake I had inserted a link to email id in the web page that was getting rendered to PDF. By just removing this link the size of the generated PDF went down to just 260 kb!
Thanks everyone who tried to help me out in solving this problem.
Current TCPDF version now includes font subsetting by default to dramatically reduce PDF size.
Check the TCPDF website at http://www.tcpdf.org and consult the official forum for further information.