imagick的PHP只显示最后一页 [英] Imagick PHP only displaying last page

问题描述

我将imagick与PHP/Windows IIS一起使用.我有一个简单的脚本，可将TIF文件转换为PDF，并将其呈现给浏览器.它可以完美地处理单页TIF文件，但可以处理多页，仅显示最后一页.

I am using imagick with PHP/Windows IIS. I have a simple script that converts a TIF file to PDF an presents it to the browser. It works flawlessly with single page TIF files, but with multiple pages, its only showing the last page.

我知道它默认显示最后一页，因为$ im变量是一个数组.我试图对其进行的任何尝试都将使其无效的PDF.下面是我的代码.我是imagick的新手，感谢您的帮助！

I understand that it shows the last page by default because the $im variable is an array. Any attempt I make to fix it makes it an invalid PDF. Below is my code. I am new to imagick and any help is appreciated!

$im = new imagick("tmp/tmp.tif");
$im->setImageFormat('pdf');
header('Content-Type: application/pdf');
echo $im;

ImageMagick版本ImageMagick 7.0.7-11 Q16 x64 2017-11-23

ImageMagick version ImageMagick 7.0.7-11 Q16 x64 2017-11-23

ImageMagick库版本ImageMagick 7.0.7-11 Q16 x64 2017-11-23

ImageMagick library version ImageMagick 7.0.7-11 Q16 x64 2017-11-23

(这是非常粗糙的测试代码，我待会儿清理)

(this is very rough testing code, I will clean it up later)

推荐答案

内部图像迭代器指向最后读取的页面.您只需使用 Imagick::setFirstIterator 将其重置为首页. /p>

The internal image iterator is pointing at the last page read. You just need to reset it to the first page with Imagick::setFirstIterator.

$im = new imagick("tmp/tmp.tif");
$im->setFirstIterator();
$im->setImageFormat('pdf');
header('Content-Type: application/pdf');
echo $im->getImage();

甚至

$im->setIteratorIndex(0);

根据评论进行编辑

如果您尝试输出整个PDF文档，则可以使用 Imagick::getImagesBlob .

If you are attempt to output the entire PDF document, you would use Imagick::getImagesBlob.

$im = new imagick("tmp/tmp.tif");
$im->setFirstIterator();
$im->setImageFormat('pdf');
$blob = $im->getImagesBlob();
header('Content-Type: application/pdf');
header('Content-Length: ' . strlen($blob));
echo $blob;

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