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
Related
I have a form in which a user is suppose to upload a .ppm file and I am suppose to convert the file to a valid .png file at the time of the upload.
I know how to do so with ImageMagic but in this case I don't have the liberty to install anything on the server, no PHP module or anything else.
I also cannot run any CLI command - only via the browser.
under these circumstances is there a way?
I didn't find a good way to do what I wanted without ImageMagic but the webhost finally agreed to install ImageMagic so I guess case closed
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 am trying to convert pdf file into jpeg image format using imagemagik crop and ghostscript.
I research a lot, but not getting any solution got so many links but my system compatiblity might be an issue.
My System is Win 7
PHP v 5.3.13
Apache v 2.3.33
wampserver2.2e-php5.3.13-httpd2.2.22-mysql5.5.24-32b
I am not getting any proper link where i can find out dll file and make such changes in .dll file etc.
If all you want is a JPEG then you can use Ghostscript directly to produce it. I can't see any reason why you would want to change a DLL, which realistically you can only do by changing and recompiling the source.
Eg:
http://stackoverflow.com/questions/13812998/ghostscript-ps-to-jpg-output-without-white-space
I have a PHP site that requires PDF to image conversion, and we're obviously using imagemagick for it.
However, right now we're trying to move to different hosting, and it seems like I will not be able to install imagemagick package on the new hosting to do the same thing as we do now.
So the question is - is there any way to convert PDF to image with either pure PHP means, or with anything else that can be just popped into DOCUMENT_ROOT and do not need to be properly installed into the system.
This is a Linux system, but I have no idea what distribution, and I can't check as my rights in this system are really limited.
thanks
Alex.
"[...] requires PDF to image conversion, and we're obviously using imagemagick for it."
This is not obvious at all.
Because ImageMagick cannot convert PDF to images all by itself. It requires to use Ghostscript as its 'delegate'. So you may have installed ImageMagick, but not installed Ghostscript and it will not work.
Vice versa, you could have Ghostscript installed but not ImageMagick -- and you could still easily convert PDF to images. For instance, convert to JPEG with resolution 144 DPI (without specifying one, you'd get 72 DPI):
gs \
-o out.jpg \
-sDEVICE=jpeg \
-r144 \
in.pdf
Also, you are free to install Ghostscript wherever you want.
(BTW: I'd keep my hands off a hosting provider who does not offer a ImageMagick nor Ghostscript installation, let alone not allow to install it yourself...)
On linux systems statically linked things can work without external library dependencies. So if you could get/create a statically linked imagemagick executable, you could use it directly under docroot. Probably it isnt so trivial.
Or you could use remote sites for doing the conversion for you. Like:
http://pdf2jpg.net/
(For posting to upload forms like this curl will be usefull.)
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.)