PHP turns PDFs into pictures and mosaics images

Description

1.pdf to picture is implemented by installing PHP extension Imagick.

2. Due to a series of problems with Windows extension installation, it is recommended to develop in a Linux environment where windows can try to install.

3. Install the ImageMagick imagick for PHP step for CentOS. ImageMagick is a set of software series, mainly used for image creation, editing and conversion, etc. (there are many installation methods, this article only describes one installation method)

(a) Installation steps:

1. Download and install ImageMagick

wget FTP://MIRROR.AARNET.EDU.AU/PUB/IMAGEMAGICK/IMAGEMAGICK-6.6.8-10.TAR.GZTAR-XZVF imagemagick-6.6.8-10.tar.gz. /configure--prefix=/usr/local/imagemagickmakemake Install

2. Download and install Imagick
Address: Http://pecl.php.net/package/imagick

wget HTTP://PECL.PHP.NET/GET/IMAGICK-3.1.0RC1.TGZTAR-XZVF imagick-3.1.0rc1phpize./configure--with-php-config=/ Usr/local/php/bin/php-config--with-imagick=/usr/local/imagemagickmakemake Install

3. Manually configure the PHP.ini

Installing shared extensions:     /usr/local/php/lib/php/extensions/no-debug-non-zts-20090626/installing Header Files:          /usr/local/php/include/php/generating imagick.so to/usr/local/php/lib/php/extensions/no-debug-non-zts-20090626 /

At this point, the PHP extension installation is complete.

(ii) method of use

/** * pdf2png * @param $pdf pending PDF file * @param $path the path of the picture to be saved * @param $page the page to be exported-1 for all 0 for the first page 1 for the second page * @return Saved picture path and file name * Note: Here is a pit for the $pdf path and $path path in Imagick, PHP version 5 + can use relative paths. The php7+ version must use an absolute path. Therefore, it is recommended that you use absolute paths.    */function pdf2png ($pdf, $path, $page =-1) {if (!extension_loaded (' Imagick ')) {return false;    } if (!file_exists ($pdf)) {return false;    }if (!is_readable ($pdf)) {return false;    } $im = new Imagick ();    $im->setresolution (150,150);    $im->setcompressionquality (100);    if ($page ==-1) $im->readimage ($pdf); else $im->readimage ($pdf. "    [". $page."] ");        foreach ($im as $Key = + $Var) {$Var->setimageformat (' png '); $filename = $path. MD5 ($Key. Time ()).        PNG ';        if ($Var->writeimage ($filename) = = True) {$Return [] = $filename;    }}//Returns an array of conversion images, which returns a two-dimensional array, since the PDF may be multiple pages. return $Return;} /** * spliceimg * @param array $imgs PDF conversion png path * @param string $path The path of the picture to be saved * @return string to stitch multiple pictures into the path of the graph * Note: Multi-page PDF conversion to post-image stitching method */function spliceimg ($imgs = Array (), $img _path = "    ) {//Custom width $width = 1230;    Get the total height $pic _tall = 0;        foreach ($imgs as $key = + $value) {$info = getimagesize ($value);    $pic _tall + = $width/$info [0]* $info [1];    }//Create long graph $temp = Imagecreatetruecolor ($width, $pic _tall);    Assign a white background $color = Imagecolorallocate ($temp, 255,255,255);    Imagefill ($temp, 0,0, $color);    $target _img = $temp;    $source = Array ();        foreach ($imgs as $k = + $v) {$source [$k] [' source '] = Imagecreatefrompng ($v);    $source [$k] [' size '] = getimagesize ($v);    } $num = 1;    $tmp = 1; $tmpy = 2;    The spacing between pictures $count = count ($imgs); for ($i = 0; $i < $count; $i + +) {imagecopy ($target _img, $source [$i] [' source '], $tmp, $tmpy, 0, 0, $source [$i] ['        Size '][0], $source [$i] [' size '][1]);        $tmpy = $tmpy + $source [$i] [' size '][1]; Frees resource memory Imagedestroy ($source [$i] [' SourCe ']);    } $returnfile = $img _path.date (' y-m-d ');                if (!file_exists ($returnfile)) {if (!make_dir ($returnfile)) {/* Create directory Failed */return false; }} $return _imgpath = $returnfile. ' /'. MD5 (Time (). $pic _tall. ' Pdftopng ').    PNG ';    Imagepng ($target _img, $return _imgpath); return $return _imgpath;}    /** * Make_dir * @param string $folder Generate directory Address * Note: Generate directory Method */function Make_dir ($folder) {$reval = false;        if (!file_exists ($folder)) {/* If the directory does not exist, try to create the directory */@umask (0);        /* Split the directory path into arrays */Preg_match_all ('/([^\/]*) \/?/i ', $folder, $atmp); /* If the first word identifier/is treated as a physical path */$base = ($atmp [0][0] = = '/')?        ‘/‘ : ‘‘; /* Iterate through the array containing the path information */foreach ($atmp [1] as $val) {if ('! = $val) {$base                . = $val; if ('.. ' = = $val | | '. ' = = $val) {/* If the directory is. Or.                    Then directly fill/continue the next loop */$base. = '/';    Continue            }} else {continue;            } $base. = '/';  if (!file_exists ($base)) {/* attempts to create a directory and continues looping if creation fails */if (@mkdir (RTrim ($base, '/'),                    0777) {@chmod ($base, 0777);                $reval = true; }}}} else {/* path already exists.    Returns whether the path is a directory */$reval = Is_dir ($folder);    } clearstatcache ();     return $reval;}

　　

Call the method, implement the function of converting PDF to picture and then stitching picture ~over~

PHP turns PDFs into pictures and mosaics images