PHP generates an instance of the PNG thumbnail for PDF

First Kind

The code is as follows

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/** * Pdf2png * @param $pdf PDF files to be processed * @param $path picture path to save * @param $page the page to be exported-1 is all 0 is the first page 1 is the second page * @return saved picture path and filename */ function Pdf2png ($pdf, $path, $page =0) { if (!is_dir ($path)) { mkdir ($path, true); } if (!extension_loaded (' Imagick ')) { Echo ' didn't find imagick!. ' ; return false; } if (!file_exists ($pdf)) { Echo ' did not find pdf '; return false; } www.111cn.net $im = new Imagick (); $im->setresolution (120,120); Set Image resolution $im->setcompressionquality (80); Compression ratio $im->readimage ($pdf.) [". $page."]); Set the first page to read a PDF $im->thumbnailimage (+, true); Change the size of an image $im->scaleimage (200,100,true); Shrink Zoom Small Image $filename = $path. " /". Time (). '. PNG '; if ($im->writeimage ($filename) = = True) { $Return = $filename; } return $Return; } $s = pdf2png (' file/1371273225-ceshi_ppt.pdf ', ' images '); Echo ' <div align= ' center ' ></div> ';

Second Kind

The code is as follows

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function Pdf2png ($PDF, $Path) { if (!extension_loaded (' Imagick ')) { return false; } if (!file_exists ($PDF)) { return false; } $IM = new Imagick (); $IM->setresolution (120,120); $IM->setcompressionquality (100); $IM->readimage ($PDF); foreach ($IM as $Key => $Var) { $Var->setimageformat (' png '); $Filename = $Path. ' /'. MD5 ($Key. Time ()). PNG '; if ($Var->writeimage ($Filename) = = True) { $Return [] = $Filename; } www.111cn.net } return $Return; }

Create a JPG thumbnail and display it

The code is as follows	Copy Code
<?php Header (' Content-type:image/jpeg '); $image = new Imagick (' image.jpg '); If 0 is provided as a width or height parameter,//aspect ratio is maintained $image->thumbnailimage (100, 0); Echo $image; ?>

Thumbnail gif animation picture

code is as follows	copy code
<?php / * Create a new Imagick object and read in GIF */ $im = new Imagick ("Example.gif"), /* Resize All frames */ for Each ($im as $frame) { /* 50x50 frames */ $frame->thumbnailimage; /* Set the virtual canvas to Corr ECT size */ $frame->setimagepage (0, 0); /* Notice writeimages instead of Writeimage */ $im->writeimages ("Example_small.gif", true);