Merge PDF Java

Combine multiple PDFs into a single, organized document with control over page order, size, orientation, bookmarks, and fonts.

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Merge PDF Java Overview

The Merge PDF Java library allows users to combine multiple PDF files into a single PDF document.

Some key features of the Merge PDF Java library include retaining page numbering, eliminating duplicate fonts for improved performance, and generating a table of contents for the merged documents. Additionally, it offers properties like page size to set a consistent page size across the merged document and page orientation to choose between portrait and landscape orientations, ensuring that the final output meets specific formatting requirements.

This Java library is useful for organizing content and reducing the number of separate files by merging them into one.

Fast Processing

Merge multiple PDFs in seconds, no matter how large your files are.

Preserve Quality

Maintain the original quality and formatting of your PDF documents.

Enterprise-Grade Security

ISO 27001, HIPAA and GDPR compliant with encrypted file processing.

Developer Friendly

Comprehensive SDKs and clear documentation for quick and simple integration.

Time-Saving Automation

Automate repetitive document merging and focus on what matters most.

Professional Results

Get perfectly merged PDFs ready for professional use.

Customizable Parameters

Fine-tune your automation with these powerful conversion options

Files

File Supported formats: .pdf

Files to be converted. Value can be URL or file content. If used in query or multipart content parameter must be suffixed with index e.g. Files[0], Files[1], Files[2]...

Password

String

Sets the password to open protected PDF.

RemoveDuplicateFonts

Bool Default: False

Do not include the same fonts from source PDFs while merging.

BookmarksToc

Collection Default: disabled

Adds a top-level bookmark for each file, using the filename or PDF title from metadata.

Values:   disabled filename title

PageSize

Collection Default: default

Scales each page to match the selected page size during PDF merging.

Values:   default a2 a3 a4 a5 a6 letter legal

PageOrientation

Collection Default: default

Sets the orientation of each page during PDF merging.

Values:   default portrait landscape

OpenPage

Integer Default: 1

Set the page number at which the PDF document should open.

Range:   1 .. 3000

StoreFile

Bool Default: False

When 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 Merge PDF integration programmatically using our modern Java SDK

1. ConvertAPI Java library install

ConvertAPI provides a Java SDK that allows you to perform a Merge PDF conversion with just a few lines of code. Merge PDF documents using Java programming language with no effort at all!

# Add the following dependency to your pom.xml:
<dependency>
   <groupId>com.convertapi.client</groupId>
   <artifactId>convertapi</artifactId>
   <version>2.10</version>
</dependency>

2. Authenticate your Java library

You can obtain your API Token by signing up for a free account. Once you sign up, you'll receive 250 free conversions instantly! Grab your API token from the account dashboard, and authenticate the ConvertAPI Java library like this:

# get your API Token here: https://www.convertapi.com/a/auth
use \ConvertApi\ConvertApi;
Config.setDefaultApiCredentials("api_token");

Merge PDF using Java in no time!

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

Integrate within minutes

Easy Merge PDF automation using our simple Java SDK

Try the Merge PDF conversion online

Try it Free

Compatible With all Java Frameworks & Tools

Compatible with Java Compatible with Spring Compatible with Hibernate Available on Apache Maven Compatible with Gradle Compatible with IntelliJ IDEA Compatible with Eclipse IDE

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

Ready to Streamline Your File Conversions?