:-)
ありがとう!興味のある人のためのコードはここにあります。
<?php
function resize($img, $w, $h, $newfilename) {
//Check if GD extension is loaded
if (!extension_loaded('gd') && !extension_loaded('gd2')) {
trigger_error("GD is not loaded", E_USER_WARNING);
return false;
}
//Get Image size info
$imgInfo = getimagesize($img);
switch ($imgInfo[2]) {
case 1: $im = imagecreatefromgif($img); break;
case 2: $im = imagecreatefromjpeg($img); break;
case 3: $im = imagecreatefrompng($img); break;
default: trigger_error('Unsupported filetype!', E_USER_WARNING); break;
}
//If image dimension is smaller, do not resize
if ($imgInfo[0] <= $w && $imgInfo[1] <= $h) {
$nHeight = $imgInfo[1];
$nWidth = $imgInfo[0];
}else{
//yeah, resize it, but keep it proportional
if ($w/$imgInfo[0] > $h/$imgInfo[1]) {
$nWidth = $w;
$nHeight = $imgInfo[1]*($w/$imgInfo[0]);
}else{
$nWidth = $imgInfo[0]*($h/$imgInfo[1]);
$nHeight = $h;
}
}
$nWidth = round($nWidth);
$nHeight = round($nHeight);
$newImg = imagecreatetruecolor($nWidth, $nHeight);
/* Check if this image is PNG or GIF, then set if Transparent*/
if(($imgInfo[2] == 1) OR ($imgInfo[2]==3)){
imagealphablending($newImg, false);
imagesavealpha($newImg,true);
$transparent = imagecolorallocatealpha($newImg, 255, 255, 255, 127);
imagefilledrectangle($newImg, 0, 0, $nWidth, $nHeight, $transparent);
}
imagecopyresampled($newImg, $im, 0, 0, 0, 0, $nWidth, $nHeight, $imgInfo[0], $imgInfo[1]);
//Generate the file, and rename it to $newfilename
switch ($imgInfo[2]) {
case 1: imagegif($newImg,$newfilename); break;
case 2: imagejpeg($newImg,$newfilename); break;
case 3: imagepng($newImg,$newfilename); break;
default: trigger_error('Failed resize image!', E_USER_WARNING); break;
}
return $newfilename;
}
$img = "images/logo.png"; // File image location
$newfilename = "images/dropoff_preview.png"; // New file name for thumb
$w = 45;
$h = 45;
$thumbnail = resize($img, $w, $h, $newfilename);
$image = @$HTTP_GET_VARS['image']; // Useful if using in an img tag to call images
$image = str_replace(array("/", ".."), "", $image); // Prevent abuse
$overlay = $thumbnail;
$dir = '';
// A default image for the demo...remove if you wish.
if ($image == NULL) {
$image = 'images/dropoff_blank.jpg';
}
// Find if image exists
if (!file_exists($dir . $image)) {
die("Image does not exist.");
}
// Set offset from bottom-right corner
$w_offset = 57;
$h_offset = 230;
$extension = strtolower(substr($image, strrpos($image, ".") + 1));
// Load image from file
switch ($extension)
{
case 'jpg':
$background = imagecreatefromjpeg($dir . $image);
break;
case 'jpeg':
$background = imagecreatefromjpeg($dir . $image);
break;
case 'png':
$background = imagecreatefrompng($dir . $image);
break;
case 'gif':
$background = imagecreatefromgif($dir . $image);
break;
default:
die("Image is of unsupported type.");
}
// Find base image size
$swidth = imagesx($background);
$sheight = imagesy($background);
// Turn on alpha blending
imagealphablending($background, true);
// Create overlay image
$overlay = imagecreatefrompng($dir . $overlay);
// Get the size of overlay
$owidth = imagesx($overlay);
$oheight = imagesy($overlay);
// Overlay watermark
imagecopy($background, $overlay, $swidth - $owidth - $w_offset, $sheight - $oheight - $h_offset, 0, 0, $owidth, $oheight);
// Output header and final image
header("Content-type: image/jpeg");
header("Content-Disposition: filename=" . $image);
imagejpeg($background);
// Destroy the images
imagedestroy($background);
imagedestroy($overlay);
あなたはhttp://www.imagemagick.org/Usage/で見ることができ、PDFプレビュー前の画像を左に1つずつたと仮定すると、http://www.fpdf.org/ – toopay
上を見てみましょうあなたのpdfを生成する前にlayers /#compositeを作成します。あなたはイメージmagickを使ってロゴのサイズを変更することができます – plague