I want to convert an SVG image to a PNG in PHP. I know how to do it in Imagemagick but I dont get it to work on my Webserver and it seems SVG support is not very good with imagemagick.
So how can I do it with GD and is SVG even supported?
Sadly, GD2 does not support SVG. I had to install a unix virtual machine and I am trying with Imagick, that supports SVG.
Related
imagick convert command is not working for this webp image -
https://lh3.googleusercontent.com/VRY0O_3L8VH2wxJSTiKPr72PeM5uhPPFEsHzzYdxenddpTI150M0TYpljnZisQaROR0=h256-rw -
convert -resize 50x50! https://lh3.googleusercontent.com/VRY0O_3L8VH2wxJSTiKPr72PeM5uhPPFEsHzzYdxenddpTI150M0TYpljnZisQaROR0=h256-rw /var/test_sandeepan/output.jpg
Output -
convert: no decode delegate for this image format `WEBP' # error/constitute.c/ReadImage/535.
From this, I conclude that webp is either not supported by Imagick at all, or not supported by this version.
A link shared in this answer, talks about webp support along with imagemagick and php, so I thought imagick must be supporting webp as well, because PHP imagemagick, as per my understanding is nothing but a wrapper class to the imagick utility. Please correct me if I am wrong here.
I conclude that webp is either not supported by Imagick at all, or not supported by this version.
Imagick doesn't really do anything. All it does is convert PHP function calls into C function calls, to call the ImageMagick code through its 'wand' API.
If you want to have ImageMagick support webp, you will either need to install a version that has been compiled with webp support compiled in, or compile it yourself: http://www.imagemagick.org/script/advanced-unix-installation.php
You'll need to install libwebp-devel either from apt/yum, or from https://github.com/webmproject/libwebp as ImageMagick relies on that 'delegate' code being there to read/write webp images.
I'm trying to use ImageMagick in CentOS to generate pdf documents and convert PNG images. ImageMagic is already installed and imagic extension is loaded and working in PHP 5.5 but when I try to generate PDF or convert images I get the follow error:
no decode delegate for this image format `PNG'
I've already installed libpng and reinstalled ImageMagic but the problem continues
I am trying to convert a jpeg image to a tiff image, however unsuccessful in doing it using PHP. Kindly help me out with this issue.
The main thing is that the imagemagick and exec() system() and related commands are blocked by the my service provider.
So provide me solution which deosnt use imagick and command tools for conversion.
For this action you need to have Imagemagic installed on your server (it is installed by default on an average web server) after you have Imagemagic support do the following:
$command = "convert /path_to_file/filename.jpg /path_to_file/filename.tiff";
exec($command);
if you dont have imagemagic install it from here:
http://www.imagemagick.org/script/index.php
is it possible to check the php imagick extension for ghostscript support?
for example if it is turned on / off, the ghostscript version used, etc.
which possibilities are there to get additional ghostscript / pdf details?
the only thing i've found so far is this (version of imagick lib itself):
http://php.net/manual/en/imagick.getversion.php
ps: no system calls are allowed (e.g. exec) from within php
I don't know much about imagick, but some things about imagemagick. My guess is that by reading this answer related to imagemagick could help you with imagick as well:
convert -list delegate | grep -Ei '(PDF|PS|EPS)'
(convert is one of the CLI utilities which are part of imagemagick.)
Reading the documentation for imagegd2(), and imagegd(), I noticed the functions are described, respectively as:
Output GD2 image to browser or file
Output GD image to browser or file
What are a GD2, and a GD image? What are the difference between those image types?
gd is an old c library, gd2 is the updated one. php uses gd2.
Some version of GD generates only PNG, but recent version can ganerate GIF and PNG. Soon GD 1 will be no longer supported in next version of PHP.