Compress PDF in PHP SDK

Reduce PDF size using PHP

Using the REST API in PHP, developers can compress PDF programmatically. With the given solution, the output will be a high quality file after compression.

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Compress PDF in PHP

Using our powerful PHP API, developers can compress PDF documents to optimize content and output file size. Reducing PDF size occurs by cleaning up unused data and resources. You can also compress images inside PDF to make the output file size even smaller.

The result of content optimization and compression can be saved in the original PDF or any available save format – DOCX, DOC, RTF, HTML and many others. For example, compress PDF and save the output as Word.

Reduce PDF file size in PHP

As mentioned, our PHP SDK allows you to programmatically reduce PDF size. And now you can try our powerful functionality and evaluate how to compress PDF in PHP with the following example:

Upload a file you want to optimize/compress
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Select the target format from the list
use Aspose\Words\WordsApi;

$wordsApi = new WordsApi('####-####-####-####-####', '##################');

$requestDocument = "Input.pdf";
$requestCompressOptions = new CompressOptions(array(
    "images_quality" => 75,
    "images_reduce_size_factor" => 1,
$compressDocumentRequest = new CompressDocumentOnlineRequest(
    $requestDocument, $requestCompressOptions, NULL, NULL, NULL, NULL
$compressDocument = $wordsApi->compressDocumentOnline($compressDocumentRequest);

$convertDocument = new ConvertDocumentRequest(
    $compressDocument->document()->values(), "pdf", NULL, NULL, NULL, NULL
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How to compress PDF PHP REST API

  1. Install Aspose.Words Cloud for PHP
  2. Add a library reference (import the library) to your PHP project
  3. Configure API using your app keys
  4. Load the source PDF to compress
  5. Compress PDF, clean unused information
  6. Select the output file format
  7. Get the result of PDF compression as a separate file

PHP library to use PDF compression

Install 'Aspose.Words Cloud SDK for PHP' from Packagist repository. Just run composer require aspose-cloud/aspose-words-cloud to install the SDK, then use require_once('vendor/autoload.php'); to import it into your project.

As an alternative, you can manually clone Aspose.Words Cloud SDK for PHP source code from GitHub. Please follow these Instructions to quickly get the necessary security credentials and access our REST API.

System Requirements

PHP 7.1 or newer

Refer to the Repository Documentation to see more details.

Other supported file formats

You can perform document compression for other file formats:


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