For all who use php 7 and ubuntu
sudo apt-get install php7.0-gd
要激活 GD 支持，配置 PHP 时加上 --with-gd[=DIR]，DIR 是 GD 的基本安装目录。要使用推荐的绑定的 GD 库版本，使用 --with-gd。要编译 GD 库，需要libpng 和 libjpeg。 自 PHP 7.4.0 起，--with-gd 变为 --enable-gd （是否启用扩展） 和 --with-external-gd （选择使用外部 libgd，而不是绑定的）。
在 Windows 中，需要将 GD 的 DLL 文件 php_gd.dll 作为一个扩展包含在 php.ini 中。 在 PHP 8.0.0 之前，DLL 被命名为 php_gd2.dll。
要增强 GD 的能力以处理更多的图像格式，在配置 PHP 时指定
--with-XXXX 的配置开关。
| 图像格式 | 配置开关 |
|---|---|
jpeg |
要激活 jpeg 的支持，加上 --with-jpeg-dir=DIR。 支持 Jpeg 6b、7 或 8。 从 PHP 7.4.0 开始，使用 --with-jpeg 替代。 |
png |
要激活 png 的支持，加上 --with-png-dir=DIR。注意，libpng 需要 zlib library，因此配置中还要加上 --with-zlib-dir[=DIR]。 从 PHP 7.4.0 开始，--with-png-dir 和 --with-zlib-dir 已经移除。 需要安装 libpng 和 zlib。 |
xpm |
要激活 xpm 的支持，加上 --with-xpm-dir=DIR。 如果配置时提示找不到所需要的库，可以加上 X11 库的路径。 从 PHP 7.4.0 开始，使用 --with-xpm 替代。 |
webp |
要激活 xpm 的支持，加上 --with-webp-dir=DIR。 从 PHP 7.4.0 开始，使用 --with-webp 替代。 |
注意: 当把 PHP 和 libpng 一起编译时，必须使用和 GD 库连接的同一个版本。
要增强 GD 的能力以处理更多的字体，在配置 PHP 时指定
--with-XXXX 的配置开关。
| 字库 | 配置开关 |
|---|---|
FreeType 2 |
要激活 FreeType 2 的支持，加上 --with-freetype-dir=DIR。 从 PHP 7.4.0 开始使用 --with-freetype 代替，它依赖于 pkg-config。 |
本地 TrueType 字符串函数 |
要激活本地 TrueType 字符串函数的支持，加上 --enable-gd-native-ttf。 （此选项无效，自 PHP 7.2.0 起已被删除。） |
sudo apt-get install php5-gd && sudo service apache2 restart
To install under Ubuntu 14.04.To install PHP GD extension on an Amazon Linux AMI server, with php 7:
sudo yum install php 70-gd
Do remember to restart Apache after the installation!
sudo service httpd restartPeople having difficulties setting the --with-libdir option needs to set it like this :
--with-libdir=lib64
That option works fine. Doing --with-libdir=/usr/lib64 doesn't work because the configure script prepends the --prefix option before the --with-libdir option. So, doing --with-libdir=/usr/lib64 makes the configure script to look for libs in /usr/usr/lib64, which is wrong of course, and not in /usr/lib64.#install under Ubuntu 16.04:
* if you have access to PHP7.1:
<sudo> apt install php7.1-gd && <sudo> systemctl restart apache2
* if you have access to PHP7.0:
<sudo> apt install php7.0-gd && <sudo> systemctl restart apache2
------------------------------------------------
Qussayyon Qamaron: Qusai.zf2gmailcomInstructions how to compile bundled version on Linux:
http://stackoverflow.com/questions/35560150/php-gd-bundled-extension-without-recompiling-php-solutionIt should be noted that it might be pretty easy to install gd without the need to recompile php, when using debian:
apt-get install php5-gdphp --version if result is 7.2 version
sudo apt-get install php7.2-gdOn Ubuntu I was missing the libpng-dev, libjpeg-dev (and in my case) libwebp-dev libraries, all gettable with apt-get.
Also once those libraries are installed, including --with-png-dir --with-jpeg-dir --with-webp-dir, without any values (i.e. =/dir) appeared to be valid ... though admittedly I didn't try without (in case the configure script autodetected them).Note if you have php-fpm installed, you have to restart the service for the installation to show up in phpinfo output...
systemctl restart php-fpm (or equivalent)I also had to install the libgd package in addition to php5-gd:
sudo apt-get install libgd2-xpm-dev*To get GD bundled under Ubuntu, the way to recompile php5 with gd is described here (french) http://doc.ubuntu-fr.org/modules_php#php5-gdIf you are using PHPBREW , the extension is called gd.
So you do.
```
phpbrew ext install gd
```
It will compile the extension to the core.If you have already compiled PHP and want to recompile '--with-gd', don't forget to run 'make clean' first!I was running PHP on a SUSE box on amazon EC2.
to get gd to work all I had to do was to run:
> yast -i php5_gd
and when that completed I just restarted apache. voila!On AntergosOS ( Arch linux )
*first run >>php -v and get current php version. In my case for PHP 7.1.14
sudo pacman -S php71-gd
then restart you apache server using,
sudo systemctl restart httpdInstallation on Pop-os No need for php5 or php7.0 etc:
sudo apt install php-gdOn Macox lion with mac port just use:
sudo port install php5-gdAs of PHP 7.4, to enable GD you have to use --enable-gd instead of --with-gdHello. Does GD image processing allow for color spaces / color profiles to be defined or maintained from the source image? For example, if I upload a jpg with ProPhoto RGB color space with the embedded profile, will all of the subsequent processed images that are output maintain the profile? Or is there no profile and or is it changed to sRGB?
Same question goes for ImageMagick.
Thank you so much!