Please I am trying to use snappy for the first time to allow the user download PDF from my site. I previously used DomPDF but found it not suitable for the current situation. I first installed wkhtmltopdf, then I installed snappy using composer which installed it to c/users/computer-name/vendor (I am very new to composer). I copied the vendor folder to my project directory.
I added the code below;
require __DIR__ . '/vendor/autoload.php';
use Knp\Snappy\Pdf;
$snappy = new Pdf('/usr/local/bin/wkhtmltopdf');
header('Content-Type: application/pdf');
header('Content-Disposition: attachment; filename="file.pdf"');
echo $snappy->getOutput('http://www.github.com');
as shown here: https://github.com/knplabs/snappy
The PDF downloads but does not open. Chrome says "Failed to load PDF document". When I open the PDF with notepad, I see the error;
Fatal error: Uncaught RuntimeException: The exit status code '1' says something went wrong:
stderr: "The system cannot find the path specified.
"
stdout: ""
command: /usr/local/bin/wkhtmltopdf --lowquality "https://www.google.com/" "C:\Users\CHIDIE~1\AppData\Local\Temp\knp_snappy5e42659b757116.59025588.pdf". in C:\xampp\htdocs\corporatecareer\templates\vendor\knplabs\knp-snappy\src\Knp\Snappy\AbstractGenerator.php:381
Please help. What are my missing. I know I am doing something wrong.
Thanks.
/usr/local/bin/wkhtmltopdf in snappy example is a linux binary location. Seems like you are using windows xampp. Download the wkhtmltopdf program from here https://wkhtmltopdf.org/downloads.html and update you path where you extracted the binary like so.
$snappy = new Pdf('C:\path to where you extracted binary');
Also, make sure that the extracted path doesn't required admin privileges to execute.
I'd like to use DOMPDF, so I downloaded v0.6.2 on my PHP server (it meets the requests: php version, GD, mbstring...)
I'm a newbie so I didn't use git or composer, just downloaded the package and put it in a folder (named DOMPDF) of my webserver (Apache 2.4 / Windows 2008 server).
I wrote this very simple example and put it directly in the DOMPDF folder:
<?php
// c:\apache24\htdocs\dompdf\sample.php
print ("I see this in HTML output");
require_once("dompdf_config.inc.php");
print("Can't see this... and nothing that follows of course!");
$html = '<html><body><p>Hello world!</p></body></html>';
$dompdf = new DOMPDF();
$dompdf->load_html($html);
$dompdf->render();
$dompdf->stream("sample.pdf");
?>
Nothing works!!! It seems I haven't the correct require directive. Is it an installation problem? What files must I include?
Thanks.
I had to manually install php-font-lib...
Everything OK now.
I am working on a project which was developed by another developer
Now client wants me to move it from current linux based server to new windows based server
it is developed in cakephp
and PDFTK is used to fill pdf files dynamically.
I am trying to configure it first on my PC locally, to learn configuration of PDFTK
I have downloaded PDFTK Free version and installed
it generates pdfile with zero bytes size and it is not opeining
I also tried to try in in CMD
pdftk D:\wamp\www\my-project\app\webroot/files/138.pdf fill_form D:\wamp\www\my-project\app\webroot/files/results/1401.fdf output generated_pdfs/test_24.pdf
it returns the following error
Error: Failed to open output file:
generated_pdfs/test_24.pdf
No output created.
Error: unable to open file for output: generated_pdfs/test_24.pdf
while the target folder has permission to write on it
pdftk TEMPLATE_FILE fill_form DATA_FILE output OUTPUT_FILE
try using OUTPUT_FILE with fullpath as below
OUTPUT_FILE = D:/folder/.../generated_pdfs/test_24.pdf
I have a small issue with mPDF (version 5.7.1).
This code should generate PDF with image file:
$mpdf = new mPDF();
$html = '<img src="https://www.google.pl/images/srpr/logo11w.png"/>';
$mpdf->WriteHTML($html);
$mpdf->debug = true;
$output = $mpdf->Output();
exit();
Well there is no image but an [x] instead.
I've googled enough to get to the conclusion that it has to be done this way but I also tried realpath to the file. Still nothing.
The only thing I haven't tried is <img src="logo11w.png"> and copying the image into the folder because I don't know into which folder I should copy file logo11w.png.
Any suggestions?
I had the same problem with PNG images being displayed as [X] when to generate PDFs with mPDF.
I added: $mpdf->showImageErrors = true;
After: $mpdf = new Mpdf();
and got the error message:
GD library required for PNG image (alpha channel)#
So after running apt-get install php5-gd generating a PDF with a PNG worked like a charm!
Including images is kinda tricky in mPDF. I had some issues as well. I found more kind of problems.
At first you should turn on debug variable:
$mpdf = new mPDF();
$mpdf->showImageErrors = true;
Usualy people don't have installed GD module for PHP. On linux machine, execute:
sudo apt-get install php5-gd
sudo service apache2 restart
On Windows servers, php_gd2.dll is included in a standard PHP installation, but is not enabled by default. To enable it, uncomment the extension=php_gd2.dll line in your php.ini file (remove the # from the beginning of that line) and restart the PHP extension. [1]
If you get this error you probably see [x] image:
mPDF error: IMAGE Error (http://www.domain.com/directory/image.jpg): Could
not find image file
Check the url if your image exists and if the image is accessible. If yes then you can try to change absolute URL to relative. You can try both versions:
<img src="directory/image.jpg">
<img src="./directory/image.jpg">
Actually I also had a problem with PNG formats. Converted PNG image to JPG worked fine.
Linking in mPDF templates should be same like for whole your framework/system.
I have encountered the same problem after migrating the script.
The problem was, that the tmp directory inside the mpdf folder was not writable. I hope it helps someone.
For me, it is working as of now. Hope this will help someone.
Solution : Try relative path of image instead of URL. Image must be hosted on the same server.
Ex: /var/www/mysite/image/xyz.jpg
In my project i fix problem and solution is:
Set src absolute path on the server example:
src="/var/www/myproject/images/logo.png" if image is on the same server.
If image is from external server src is absolute path example:
src="https://www.google.bg/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png".
Hope this will help someone.
Just experienced this issue today with an old website.
If you have mPDF <= 6.0 and you are now experiencing this issue when it was previously working. The reason is that there is an SSL error (expired certificate, invalid certificate, etc). The solution is the fix the SSL certificate installation; however, if you want a quick fix you can edit the mpdf.php file to ignore SSL errors during CURL requests. Simply add:
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
Inside the functions:
file_get_contents_by_curl
and
_get_file
Ok. After the last comment on question (14:30). Here the exact same code that IS working with mPDF 5.4. And it saves it's output on scripts directory as test.pdf. Firewall issues?
Edited
I have the following directories / files:
images
wallpaper01.jpg
wallpaper02.jpg
index.php (source code)
So these image files are relatively starting from the script directory as it looks like.
require_once __DIR__ . DIRECTORY_SEPARATOR . 'MPDF/mpdf.php';
try {
$mpdf = new mPDF();
$mpdf->WriteHTML('<img src="images/wallpaper01.jpg" alt="" width="480">');
$mpdf->WriteHTML('<img src="images/wallpaper02.jpg" alt="" width="480">');
$mpdf->Output(__DIR__ . DIRECTORY_SEPARATOR . 'test.pdf', 'F');
} catch(Exception $e) {
echo $e;
}
Fully working example (download)
It's enough
The solve is :
$mpdf->curlAllowUnsafeSslRequests = true;
It's all
In my case, the problem was just the usage of transparents PNG using the 6.0 version. This bug was fixed on the mpdf 6.1 version.
I successfully solved the problem downloading the 6.1 version from here and overriding the mpdf files on my project.
You can try this:
$mpdf->imageVars['myvariable'] = file_get_contents('alpha.png');
or
$html = '<img src="var:myvariable"/>';
$mpdf->WriteHTML($html);
after there, you should do:
$mpdf->Image('var:myvariable', 0, 0);
read more about this in documentation:
mPDF Load Image
I am using Code Ignitor and mpdf. After installing php-gd5 library, I had to re-install the php with configure command --with-gd to resolve the issue
I encountered a similar problem using MPDF 8.1.x where I could not use URL paths for my images.
Eventually I determined it was caused because the "curlUserAgent" setting was using a very old user agent.
The setting was found here:
/mpdf/src/Config/ConfigVariables.php
The curlUserAgent was set to:
'curlUserAgent' => 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:13.0) Gecko/20100101 Firefox/13.0.1',
But I updated this to:
'curlUserAgent' => 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:108.0) Gecko/20100101 Firefox/108.0',
and the images successfully loaded from URL source.
change to
remove the second line before initializing $html
its undefined at that time.
new code will be as
$mpdf = new mPDF();
$html= "<img src='https://www.google.pl/images/srpr/logo11w.png' alt=''>";
$mpdf->WriteHTML($html);
$mpdf->debug = true;
$output = $mpdf->Output();
exit();
Another reason might be you're running your application in Docker (or another container) and you're using a domain that can't be resolved.
Adding an alias in my docker-compose file resolved the issue for me.
networks:
app-network:
aliases:
- your.local.domain
To find out if this is the reason, log into the running container and attempt to request the file via curl/wget/etc.
.htaccess with password also can blocks access
An exception can be added:
AuthType Basic
AuthUserFile "/home/domain.pl/public_html/.htpasswd"
require valid-user
AuthName "set password"
Order allow,deny
# payu
Allow from 185.68.14.10
Allow from 185.68.14.11
Allow from 185.68.14.12
Allow from 185.68.14.26
Allow from 185.68.14.27
Allow from 185.68.14.28
# serwer localhost
Allow from 185.185.185.185
satisfy any
Had the same issue today. Problem was that the file was in another folder on the same server of the file calling the "save pdf" function.
copy("holdpath.bmp","samepath.bmp");
$writer->save("someotherpath.pdf");
unlink("samepath.bmp");
I am using ZendFramwork1, my local sever php 5.4. and with MongoDB .I have use function Zend_Pdf to draw PDF in my project. it's run well in my local server. but when i put code to sever that have same version PHP. Everything module is okay but for function print data to pdf is errors . I got message like PDF error: Can not open 'data/reports/myfile.pdf' file for writing. . Any one can help me . what's different between my local server and real sever ?
I am looking to see your reply soon.
thank
First off, chmod 777 is a hack and shouldn't really be used. If you're using apache, you are better off chown'ing the folder to the correct user.