PDF Tools
PDF to PDF/A PHP Overview
Leverage our PDF to PDF/A PHP SDK to convert your PDFs into the PDF/A format, tailored for archival and preservation needs.
This tool supports PDF/A ISO conformance levels, such as PDF/A-1a, PDF/A-1b, PDF/A-2a, PDF/A-2b, PDF/A-2u, PDF/A-3a, PDF/A-3b, PDF/A-3u, PDF/A-4, PDF/A-4e, and PDF/A-4f, ensuring your documents meet strict archival standards.
E-Invoice ready. Optionally embed structured e-invoice XML in the output PDF/A. We support Factur-X 1.0 and ZUGFeRD 1.0/2.0 profiles, ideal for compliant archiving and exchange. Use with PDF/A-3 to include the XML payload alongside the visual PDF.
It's ideally suited for professionals and organizations looking for a dependable solution for document preservation, offering customizable options to fit various compliance and archival requirements. With our PHP SDK, secure and long-term document storage becomes straightforward and efficient.
VeraPDF Certified
Industry-leading VeraPDF compliance for trusted validation.
Full ISO Compliance
Supports PDF/A-1a/1b, PDF/A-2a/2b/2u, PDF/A-3a/3b/3u, and PDF/A-4/4e/4f with full conformance options.
Batch Conversion Ready
Convert large volumes of PDFs to PDF/A efficiently.
Regulatory Archiving
Meet archiving standards required by governments worldwide.
E-Invoice Embedding
Embed Factur-X or ZUGFeRD XML in PDF/A-3 (a/b/u) for compliant e-invoicing.
Future-Proof Viewing
Ensure documents display correctly now and decades later.
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
StringSets the password to open protected PDF.
PdfaVersion
Collection Default: pdfA2bSet PDF/A version.
Values: pdfA1a pdfA1b pdfA2a pdfA2b pdfA2u pdfA3a pdfA3b pdfA3u pdfA4 pdfA4e pdfA4fInvoiceFormat
Collection Default: noneSelects the e-invoice format to embed. Choosing any e-invoice format overrides the selected PDF/A version and outputs PDF/A-3. Requires a valid structured invoice XML.
Values: none facturX zugferd1 zugferd2InvoiceFile
File Supported formats: .xmlSpecifies the structured invoice XML (ZUGFeRD / Factur-X) to embed for hybrid-invoice compatibility. Required when InvoiceFormat is enabled.
Linearize
Bool Default: FalseLinearize PDF file and optimize for fast Web View.
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 PDF to PDF/A integration programmatically using our simple library for PHP
1. Install the PHP SDK
ConvertAPI provides a PHP library that allows you to perform a PDF to PDF/A conversion with just a few lines of code. Convert PDF to PDF/A 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. PDF to PDF/A - complete code snippet for PHP
Once you have your authentication in place, simply copy-paste this pdf to pdfa conversion code snippet into your PHP project:
Integrate within minutes
Easy PDF to PDF/A 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