Security Tools
Unprotect PDF PHP Overview
Unlock secured PDF documents to regain full access for reading and processing. Remove user or owner password protection when credentials are available, lifting restrictions on printing, copying, editing, form filling, and annotations. Process single files or batches consistently and integrate unprotection into upstream workflows such as OCR, metadata extraction, redaction, and archival. Ideal for organizations standardizing document intake where protected PDFs must be normalized before downstream automation.
Lightning Fast Conversions
Process and convert files in seconds with our high-performance cloud infrastructure.
Accuracy Guaranteed
Our advanced algorithms ensure pixel-perfect and content-accurate file conversions.
Enterprise-Grade Security
ISO 27001, HIPAA, and GDPR compliant with encrypted file processing.
Global Infrastructure
Strategically located servers ensure low latency and high availability worldwide.
Developer Friendly
Comprehensive SDKs and clear documentation for quick and simple integration.
Time-Saving Automation
Automate repetitive document workflows and focus on what matters most.
Customizable Parameters
Fine-tune your automation with these powerful conversion options
File
File Supported formats: .pdfFile to be converted. Value can be URL or file content.
Password
StringEnter user password to remove User protection. Leave the parameter empty to remove Owner protection.
StoreFile
Bool Default: FalseWhen the StoreFile parameter is set to True, your converted file is written to ConvertAPI’s encrypted, temporary storage and made available via a time-limited secure download URL, valid for up to 3 hours. After this period, the file is permanently deleted.
When StoreFile is set to False, conversion happens entirely in-memory. The raw file bytes are streamed back in the API response without touching disk or external storage, ensuring maximum security and zero persistence so that only you can access the content.
Step-by-Step Guide
Easy Unprotect PDF integration programmatically using our simple library for PHP
1. Install the PHP SDK
ConvertAPI provides a PHP library that allows you to perform a Unprotect PDF conversion with just a few lines of code. Unprotect PDF documents using PHP programming language with no effort at all!
Execute the following command in your project root:
composer require convertapi/convertapi-php
Or install it manually using ConvertApi autoloader:
require_once('/path/to/convertapi-php/lib/ConvertApi/autoload.php');
2. Unprotect PDF - complete code snippet for PHP
Once you have your authentication in place, simply copy-paste this pdf to unprotect conversion code snippet into your PHP project:
Integrate within minutes
Easy Unprotect PDF automation using our simple PHP SDK
Compatible With all PHP Frameworks & Tools
Businesses trust us
Highest rated File Conversion API on major B2B software listing platforms: Capterra, G2, and Trustpilot.
"ConvertAPI has been a game-changer for our document automation workflows. Their conversion accuracy and API reliability are unmatched in the industry for over 7 years."
"ConvertAPI is a reliable, cost-effective solution with a proven track record of stability. It has grown significantly in maturity, adopting enterprise-grade practices over the years."
"We've integrated ConvertAPI across our entire document processing platform. The performance is exceptional and the support team is always responsive. Highly recommended!"
Enterprise-Grade Security
We ensure that all document processing is handled securely in the cloud, adhering to industry-leading standards like ISO 27001, GDPR, and HIPAA. To enhance security even further, we can ensure that no files or data are stored on our servers and never leave your country.
Learn more about security