Flatten PDF using PHP

Flatten PDF to prevent unwanted changes

Flatten PDF PHP library is a tool that allows you to lock PDF form fields and prevent further modifications of the values entered into the PDF forms. It also provides an option to prevent text selection, copying, and extraction by turning the textual symbols into vectorial paths to make the PDF read-only while preserving the original vectorial PDF quality.

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File conversion library for PHP

ConvertAPI provides a PHP library that allows you to perform a Flatten PDF conversion with just a few lines of code. Flatten 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:

Following extensions are required: curl & json

require_once('/path/to/convertapi-php/lib/ConvertApi/autoload.php');

Composer GitHub

How To Flatten PDF using PHP?

You can Flatten PDF in a few simple steps:

Obtain your secret key by signing up for a free account.
Install the ConvertAPI library for PHP
Set up the Flatten PDF conversion using our live demo tool
Copy-paste the auto-generated code snippet into your project!

Flatten PDF - complete code snippet for PHP

Once you have your authentication in place, simply copy-paste this pdf to flatten conversion code snippet into your PHP project:

// Code snippet is using the ConvertAPI JavaScript Client: https://github.com/ConvertAPI/convertapi-js

// Code snippet is using the ConvertAPI Node.js Client: https://github.com/ConvertAPI/convertapi-nodejs

// Code snippet is using the ConvertAPI PHP Client: https://github.com/ConvertAPI/convertapi-php

// Code snippet is using the ConvertAPI Java Client: https://github.com/ConvertAPI/convertapi-java

// Code snippet is using the ConvertAPI C# Client: https://github.com/ConvertAPI/convertapi-dotnet

# Code snippet is using the ConvertAPI Ruby Client: https://github.com/ConvertAPI/convertapi-ruby

# Code snippet is using the ConvertAPI Python Client: https://github.com/ConvertAPI/convertapi-python

// Code snippet is using the ConvertAPI Go Client: https://github.com/ConvertAPI/convertapi-go

REM Code snippet is using the command line utility program: https://github.com/ConvertAPI/convertapi-cli

Upload the file and see how it works

You can set up the advanced conversion parameters and test the conversion result online using our interactive demo tool. It will auto-generate the code snippet for you!

Advanced Flatten PDF conversion parameters

FlattenText Bool

Prevent text selection, copying, and extraction by turning the textual symbols into vectorial paths to make the PDF read-only while preserving the original vectorial PDF quality.

Password String

Sets the password to open protected documents.