The first step:
Using MPDF (version 6.1) to convert an HTML page to a PDF file, you can go to it successfully. The code is as follows:
$html = "对盲人初学者来说,它无需任何额外的修改。";// $html = "These are the most used acronyms throughout this manual.";include
Now the integrity of the file verification, to prevent the file is tampered with the technology has been more mature, the general use of digital signatures, digital watermarking, and so on, I recently encountered in a project tamper-proof
first, what is ImageMagick?
ImageMagick is a powerful, stable, and free toolset and development kit that can be used to read, write, and process picture files in more than 185 basic formats, including popular TIFF, JPEG, GIF, PNG, PDF, and PHOTOCD
Why the file cannot be read, the path PDF file permissions are set
$PDF = './22.pdf';$IM =new imagick(); $IM->setResolution(120,120); $IM->setCompressionQuality(100); $IM->readImage($PDF); foreach($IM as $Key => $Var){
Using system. IO;Using itextsharp. text;Using itextsharp.text.pdf;// Icsharpcode. sharpziplib. dll and itextsharp. dll must be referenced in the project.Public String txtfilepath;Public String savepdfpath; // path for saving the PDF file# Region
First Kind
The code is as follows
Copy Code
/*** 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*
Use imagick in PHP to convert a PDF file into an image ,. In PHP, imagick is used to convert a PDF file into an image. in PHPManual, the description of imagick is really concise. for each member function, click open to see the following text: copy
PHP Manual, the description of Imagick, is really concise, each member function, click Open to see the following text:
Copy Code code as follows:
Warning
This function is currently not documented; Only it argument list is available.
This article describes how to convert a PDF file into an image using imagick in PHP. This article focuses on the handling of two errors, especially GhostScript errors. For more information, see PHP Manual, the description of imagick is really
To convert a PDF file to an image, whether in windows or linux, you must first install the Imagick extension. This extension provides detailed installation tutorials and flexible installation. The code for implementing the function is as follows:
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