{"id":28363,"date":"2022-06-17T08:37:20","date_gmt":"2022-06-17T08:37:20","guid":{"rendered":"http:\/\/pdf-to-image-conversion-using-php"},"modified":"2025-02-16T10:58:47","modified_gmt":"2025-02-16T18:58:47","slug":"pdf-to-image-conversion-using-php","status":"publish","type":"post","link":"https:\/\/cloudinary.com\/blog\/guest_post\/pdf-to-image-conversion-using-php\/","title":{"rendered":"PDF to Image Conversion Using PHP"},"content":{"rendered":"

Introduction<\/h2>\n

There are numerous PDF readers, and applications accessible for free on the internet that can help you open and view PDF document files. But, to really make changes to a PDF, you need something more advanced. This article demonstrates a PDF converter tool to convert PDF to image and how Cloudinary can be vital to achieving such a process.<\/p>\n

Github<\/h2>\n

Access the project\u2019s codebase on Github<\/a>.<\/p>\n

Phpsandbox<\/h2>\n

Click this link to view the working application demo Phpsandbox<\/a><\/p>\n

Prerequisites<\/h2>\n

Entry-level html and php knowledge.<\/p>\n

Setting Up the Sample Project<\/h2>\n

Create a new folder: phppdf2png<\/code>\nInside the new folder\u2019s terminal use the command composer init<\/code>. You must have PHP<\/code> and composer<\/code> downloaded to your machine.<\/p>\n

Follow the composer procedure which will help handle the necessary project dependencies. When asked to search for a package, search for Cloudinary<\/code><\/p>\n

Cloudinary<\/h2>\n

Cloudinary<\/a> refers to an end-to-end image and video management solution for websites and mobile apps, covering everything from image and video uploads, storage, manipulations, optimizations to delivery. Our app will use the media file online upload feature.\nTo begin, click here<\/a> to set up a new account or log in to an existing one. We use the environment keys from the user dashboard to integrate Cloudinary with our project. We will create a file named env<\/code> and use the guide below to fill in the project configuration.<\/p>\n

      CLOUDINARY_NAME=\n      CLOUDINARY_API_KEY=\n      CLOUDINARY_API_SECRET=\n      GOOGLE_API_KE=\n<\/code><\/span><\/pre>\n
Our app will include 2 sections; html<\/code> and PHP<\/code>. Start by creating a directory index.php<\/code> and including the following:<\/p>\n
\"index.php\"\n\n\n<!doctype html<\/span>><\/span>\n<html<\/span> lang<\/span>=\"en\"<\/span>><\/span>\n  <head<\/span>><\/span>\n    <meta<\/span> charset<\/span>=\"utf-8\"<\/span>><\/span>\n    <meta<\/span> name<\/span>=\"viewport\"<\/span> content<\/span>=\"width=device-width, initial-scale=1\"<\/span>><\/span>\n    <title<\/span>><\/span>PHP PDF to Image<\/title<\/span>><\/span>\n \n    <link<\/span> rel<\/span>=\"stylesheet\"<\/span> href<\/span>=\"https:\/\/cdn.jsdelivr.net\/npm\/bootstrap@4.6.0\/dist\/css\/bootstrap.min.css\"<\/span> integrity<\/span>=\"sha384-B0vP5xmATw1+K9KRQjQERJvTumQW0nPEzvF6L\/Z6nronJ3oUOFUFpCjEUQouq2+l\"<\/span> crossorigin<\/span>=\"anonymous\"<\/span>><\/span>\n    <meta<\/span> name<\/span>=\"theme-color\"<\/span> content<\/span>=\"#7952b3\"<\/span>><\/span>\n \n  <\/head<\/span>><\/span>\n  <body<\/span>><\/span>\n    \n \n<div<\/span> class<\/span>=\"container py-3\"<\/span>><\/span>\n  <header<\/span>><\/span>\n    <div<\/span> class<\/span>=\"pricing-header p-3 pb-md-4 mx-auto text-center\"<\/span>><\/span>\n      <h3<\/span> class<\/span>=\"display-4 fw-normal\"<\/span>><\/span>Php pdf to Image<\/h3<\/span>><\/span>\n    <\/div<\/span>><\/span>\n  <\/header<\/span>><\/span>\n \n  <main<\/span>><\/span>\n    <form<\/span> action<\/span>=\"\"<\/span> method<\/span>=\"POST\"<\/span> enctype<\/span>=\"multipart\/form-data\"<\/span>><\/span>\n        <div<\/span> class<\/span>=\"form-row\"<\/span>><\/span>\n            <div<\/span> class<\/span>=\"form-group col-md-4 offset-4\"<\/span>><\/span>\n                <label<\/span>  class<\/span>=\"sr-only\"<\/span>><\/span>Upload Pdf<\/label<\/span>><\/span>\n                <input<\/span> type<\/span>=\"file\"<\/span> class<\/span>=\"form-control\"<\/span> name<\/span>=\"upload_file\"<\/span> placeholder<\/span>=\"Select pdf file\"<\/span>><\/span>\n            <\/div<\/span>><\/span>\n        <\/div<\/span>><\/span>\n        <div<\/span> class<\/span>=\"form-row\"<\/span>><\/span>\n            <div<\/span> class<\/span>=\"form-group col-md-4 offset-4\"<\/span>><\/span>\n                <label<\/span>  class<\/span>=\"sr-only\"<\/span>><\/span>Page number<\/label<\/span>><\/span>\n                <input<\/span> type<\/span>=\"text\"<\/span> class<\/span>=\"form-control\"<\/span> name<\/span>=\"page_no\"<\/span> placeholder<\/span>=\"Page number to convert\"<\/span> min<\/span>=\"1\"<\/span>><\/span>\n            <\/div<\/span>><\/span>\n        <\/div<\/span>><\/span>\n        <div<\/span> class<\/span>=\"form-row\"<\/span>><\/span>\n            <div<\/span> class<\/span>=\"form-group col-md-4 offset-4\"<\/span>><\/span>\n                <button<\/span> type<\/span>=\"submit\"<\/span> class<\/span>=\"btn btn btn-dark\"<\/span>><\/span>Convert to Image<\/button<\/span>><\/span>\n            <\/div<\/span>><\/span>\n        <\/div<\/span>><\/span>\n    <\/form<\/span>><\/span>\n \n    <div<\/span> class<\/span>=\"col\"<\/span>><\/span>\n        <?php<\/span> if<\/span>(isset<\/span>($_FILES['upload_file'<\/span>])){ ?><\/span><\/span>\n            <img<\/span> class<\/span>=\"img-fluid\"<\/span> src<\/span>=\"<?=$resp['url']?>\"<\/span> alt<\/span>=\"response\"<\/span>><\/span>\n        <?php<\/span> }else<\/span> { ?><\/span><\/span>\n            <h2<\/span> class<\/span>=\"display-6 text-center mb-4\"<\/span>><\/span>Upload pdf<\/h2<\/span>><\/span>\n        <?php<\/span>  } ?><\/span><\/span>\n    <\/div<\/span>><\/span>\n  <\/main<\/span>><\/span>\n<\/div<\/span>><\/span>\n  <\/body<\/span>><\/span>\n<\/html<\/span>><\/span>\n<\/code><\/span>Code language:<\/span> HTML, XML<\/span> (<\/span>xml<\/span>)<\/span><\/small><\/pre>\n
Above, we create an html web page titled PHP PDF to Image<\/code> and import bootstrap for the UI styling. It will have a header, an input tag to upload pdf files, a form to insert the page number to convert and a button to activate the conversion. The picture will also be available on a user\u2019s Cloudinary media library. The result will look like below:<\/p>\n
\"UI\"<\/p>\n
Now to the php section:<\/p>\n
Start by importing cloudinary.<\/p>\n
\ninclude_once<\/span> __DIR__<\/span> . '\/vendor\/autoload.php'<\/span>;\n\nuse<\/span> Cloudinary<\/span>\\Api<\/span>\\Upload<\/span>\\UploadApi<\/span>;\nuse<\/span> Cloudinary<\/span>\\Configuration<\/span>\\Configuration<\/span>;\n<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n
Confirm the post request has all the required parameters with values<\/p>\n
\nif<\/span> (isset<\/span>($_POST['page_no'<\/span>]) && isset<\/span>($_FILES['upload_file'<\/span>])){\n\n}\n<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n
Instantiate Cloudinary SDK instance with credentials from env<\/p>\n
 Configuration::instance([\n        'cloud'<\/span> => [\n            'cloud_name'<\/span> => getenv(\"CLOUDINARY_NAME\"<\/span>),\n            'api_key'<\/span> => getenv(\"CLOUDINARY_API_KEY\"<\/span>),\n            'api_secret'<\/span> => getenv(\"CLOUDINARY_API_SECRET\"<\/span>)\n        ],\n        'url'<\/span> => [\n            'secure'<\/span> => true<\/span>\n        ]\n    ]);\n<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n
Extract the temporary file location for the uploaded file<\/p>\n
\n$file_tmp= $_FILES['upload_file'<\/span>]['tmp_name'<\/span>];\n\n<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n
Use the file location earlier extracted to generate the base64 encoded string equivalent for the\nuploaded file.<\/p>\n
\n$file_tmp= $_FILES['upload_file'<\/span>]['tmp_name'<\/span>];\n\n$data = file_get_contents($file_tmp);\n$base64 = 'data:application\/pdf;base64,'<\/span> . base64_encode($data);\n\n<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n
Upload the base64 string to cloudinary and apply the transformation to convert the\nfile to image png.\nAdditional options have been explained using the comments on the code snippet<\/p>\n
\n\n$resp = (new<\/span> UploadApi())->upload($base64, [\n\t\t'resource_type'<\/span> => 'image'<\/span>,\n        'format'<\/span>=> 'png'<\/span>, \/\/ for the transformation<\/span>\n        'async'<\/span> => false<\/span>, \/\/ api to return the final status within the same session<\/span>\n        'type'<\/span> => 'upload'<\/span>, \n\t])\n\n<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n
Thats it! Your final code should look like below:<\/p>\n
\ninclude_once __DIR__ . '\/vendor\/autoload.php';\n\nuse Cloudinary\\Api\\Upload\\UploadApi;\nuse Cloudinary\\Configuration\\Configuration;\n\n\n\/\/ Confirm values for page number to be extracted and the file selection are okay\nif (isset($_POST['page_no']) && isset($_FILES['upload_file'])){\n\n    \/\/ Cloudinary instance setup globaly accros the whole application\n    Configuration::instance([\n        'cloud' => [\n            'cloud_name' => getenv(\"CLOUDINARY_NAME\"),\n            'api_key' => getenv(\"CLOUDINARY_API_KEY\"),\n            'api_secret' => getenv(\"CLOUDINARY_API_SECRET\")\n        ],\n        'url' => [\n            'secure' => true\n        ]\n    ]);\n\n    \/\/ The the temp file storage location\n    $file_tmp= $_FILES['upload_file']['tmp_name'];\n\n    \/\/ get the file contents\n    $data = file_get_contents($file_tmp);\n\n    \/\/ base64 encode the file contents\n    $base64 = 'data:application\/pdf;base64,' . base64_encode($data);\n\n\n    \/\/ Upload the file as png from pdf\n    $resp = (new UploadApi())->upload($base64, [\n\t\t'resource_type' => 'image',\n        'format'=> 'png', \/\/ for the transformation\n        'async' => false, \/\/ api to return the final status within the same session\n        'type' => 'upload', \n\t\t]\n\t);\n\n}\n\n<!doctype html<\/span>><\/span>\n<html<\/span> lang<\/span>=\"en\"<\/span>><\/span>\n  <head<\/span>><\/span>\n    <meta<\/span> charset<\/span>=\"utf-8\"<\/span>><\/span>\n    <meta<\/span> name<\/span>=\"viewport\"<\/span> content<\/span>=\"width=device-width, initial-scale=1\"<\/span>><\/span>\n    <title<\/span>><\/span>PHP PDF to Image<\/title<\/span>><\/span>\n \n    <link<\/span> rel<\/span>=\"stylesheet\"<\/span> href<\/span>=\"https:\/\/cdn.jsdelivr.net\/npm\/bootstrap@4.6.0\/dist\/css\/bootstrap.min.css\"<\/span> integrity<\/span>=\"sha384-B0vP5xmATw1+K9KRQjQERJvTumQW0nPEzvF6L\/Z6nronJ3oUOFUFpCjEUQouq2+l\"<\/span> crossorigin<\/span>=\"anonymous\"<\/span>><\/span>\n    <meta<\/span> name<\/span>=\"theme-color\"<\/span> content<\/span>=\"#7952b3\"<\/span>><\/span>\n \n  <\/head<\/span>><\/span>\n  <body<\/span>><\/span>\n    \n \n<div<\/span> class<\/span>=\"container py-3\"<\/span>><\/span>\n  <header<\/span>><\/span>\n    <div<\/span> class<\/span>=\"pricing-header p-3 pb-md-4 mx-auto text-center\"<\/span>><\/span>\n      <h3<\/span> class<\/span>=\"display-4 fw-normal\"<\/span>><\/span>Php pdf to Image<\/h3<\/span>><\/span>\n    <\/div<\/span>><\/span>\n  <\/header<\/span>><\/span>\n \n  <main<\/span>><\/span>\n    <form<\/span> action<\/span>=\"\"<\/span> method<\/span>=\"POST\"<\/span> enctype<\/span>=\"multipart\/form-data\"<\/span>><\/span>\n        <div<\/span> class<\/span>=\"form-row\"<\/span>><\/span>\n            <div<\/span> class<\/span>=\"form-group col-md-4 offset-4\"<\/span>><\/span>\n                <label<\/span>  class<\/span>=\"sr-only\"<\/span>><\/span>Upload Pdf<\/label<\/span>><\/span>\n                <input<\/span> type<\/span>=\"file\"<\/span> class<\/span>=\"form-control\"<\/span> name<\/span>=\"upload_file\"<\/span> placeholder<\/span>=\"Select pdf file\"<\/span>><\/span>\n            <\/div<\/span>><\/span>\n        <\/div<\/span>><\/span>\n        <div<\/span> class<\/span>=\"form-row\"<\/span>><\/span>\n            <div<\/span> class<\/span>=\"form-group col-md-4 offset-4\"<\/span>><\/span>\n                <label<\/span>  class<\/span>=\"sr-only\"<\/span>><\/span>Page number<\/label<\/span>><\/span>\n                <input<\/span> type<\/span>=\"text\"<\/span> class<\/span>=\"form-control\"<\/span> name<\/span>=\"page_no\"<\/span> placeholder<\/span>=\"Page number to convert\"<\/span> min<\/span>=\"1\"<\/span>><\/span>\n            <\/div<\/span>><\/span>\n        <\/div<\/span>><\/span>\n        <div<\/span> class<\/span>=\"form-row\"<\/span>><\/span>\n            <div<\/span> class<\/span>=\"form-group col-md-4 offset-4\"<\/span>><\/span>\n                <button<\/span> type<\/span>=\"submit\"<\/span> class<\/span>=\"btn btn btn-dark\"<\/span>><\/span>Convert to Image<\/button<\/span>><\/span>\n            <\/div<\/span>><\/span>\n        <\/div<\/span>><\/span>\n    <\/form<\/span>><\/span>\n \n    <div<\/span> class<\/span>=\"col\"<\/span>><\/span>\n        <?php<\/span> if<\/span>(isset<\/span>($_FILES['upload_file'<\/span>])){ ?><\/span><\/span>\n            <img<\/span> class<\/span>=\"img-fluid\"<\/span> src<\/span>=\"<?=$resp['url']?>\"<\/span> alt<\/span>=\"response\"<\/span>><\/span>\n        <?php<\/span> }else<\/span> { ?><\/span><\/span>\n            <h2<\/span> class<\/span>=\"display-6 text-center mb-4\"<\/span>><\/span>Upload pdf<\/h2<\/span>><\/span>\n        <?php<\/span>  } ?><\/span><\/span>\n    <\/div<\/span>><\/span>\n  <\/main<\/span>><\/span>\n<\/div<\/span>><\/span>\n  <\/body<\/span>><\/span>\n<\/html<\/span>><\/span>\n<\/code><\/span>Code language:<\/span> HTML, XML<\/span> (<\/span>xml<\/span>)<\/span><\/small><\/pre>\n
You\u2019ve successfully created a pdf to image php converter. Enjoy the experience<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":41,"featured_media":28364,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_cloudinary_featured_overwrite":false,"footnotes":""},"categories":[1],"tags":[134,370,229,371],"class_list":["post-28363","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-guest-post","tag-image","tag-php","tag-under-review"],"acf":[],"yoast_head":"\nPDF to Image Conversion Using PHP<\/title>\n<meta name=\"description\" content=\"There are numerous PDF readers, and applications accessible for free on the internet that can help you open and view PDF document files. But, to really make changes to a PDF, you need something more advanced. This article demonstrates a PDF converter tool to convert PDF to image and how Cloudinary can be vital to achieving such a process.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cloudinary.com\/blog\/guest_post\/pdf-to-image-conversion-using-php\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PDF to Image Conversion Using PHP\" \/>\n<meta property=\"og:description\" content=\"There are numerous PDF readers, and applications accessible for free on the internet that can help you open and view PDF document files. But, to really make changes to a PDF, you need something more advanced. 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