PDF Tools
PDF to Fillable PDF PHP Overview
Turn a flat PDF form into a fillable one. The converter reads the text and lines of each page, finds the places where a person would write, and adds AcroForm fields there:
- Text fields on writing lines, empty table cells, labeled boxes, comb boxes and date slots such as
__/__/____. - Check boxes and radio buttons on small squares, circles and ballot box characters. Yes and No boxes on one row become a radio group.
- Dropdowns and list boxes where a select is printed with its arrow or its options.
- Signature fields on lines labeled "Signature". Date fields that show their format, such as MM/DD/YYYY, get date formatting in Acrobat and other viewers that run form scripts.
Each field is named after its nearest label, which also becomes its tooltip. A field with no label nearby gets a generic name. The fields have no border and no background, so the page looks exactly as before until someone fills it in. Boxes and circles printed as checked start checked. To fill the new fields with data, use FDF to PDF, and to lock them afterwards, Flatten PDF.
A PDF that already has form fields is returned unchanged, and so is a PDF where nothing to fill in is found. Use PageRange to add fields to some pages only. A password-protected PDF is opened with Password. When fields are added, the result is saved without encryption, and a PDF/A input loses its PDF/A identification, because form fields with scripts are not allowed in PDF/A. Scanned PDFs get no fields, because the detection needs the page's text and vector graphics.
Includes a ready-to-use PHP SDK.
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.
PageRange
String Default: 1-lastSet page range to convert. The parameter understands digits and the keywords even, odd and last. Example: 1,2,5-last.
Password
StringSets the password to open protected PDF.
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 False, the conversion runs in memory and the file comes back in the API response: Base64 inside the JSON body by default, or as raw bytes when the request sends Accept: application/octet-stream. Nothing is written to disk or external storage, so only you can access the content.
Step-by-Step Guide
Easy PDF to Fillable PDF integration using our simple library for PHP
1. Install the PHP SDK
ConvertAPI provides a PHP library that allows you to perform a PDF to Fillable PDF conversion with just a few lines of code. Convert PDF to Fillable 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. PDF to Fillable PDF - complete code snippet for PHP
Once you have your authentication in place, simply copy-paste this pdf to fillable conversion code snippet into your PHP project:
Integrate within minutes
Easy PDF to Fillable 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