Merge PDF Files Online - Free Unlimited

Rather than sending multiple PDF files separately, it is more convinient to send them by merging them into a single file. Moreover, you can combine PDF documents on related topics, which is a better way to organize files. To easily merge several PDFs, we will discuss the free online PDF merger application to merge PDF files online. Besides, we will guide developers on how they can merge PDFs programmatically.

We will cover the following points:

Using Free Online PDF Merger

Use our free online PDF merger tool, to combine PDFs without any prerequisites. You just need to open the app in your web browser, upload files, and press the Merge button. After processing you will have the option to download the resultant file or copy its link. You don’t have to worry about the privacy and security of your documents. Our secured server ensures the protection of the uploaded files, these files will be removed from the server automatically after 24 hours.

Combine PDF files securely online

Steps to Combine PDF Files Online

You are required to follow the simple steps given below:

  1. First, open our online converter in your web browser.
  2. Then, upload your PDFs.
  3. After that, start combining process by pressing the “Merge” button.
  4. Finally, copy the link of the resultant file or download it after completion of the merging process.

Developer’s Guide: Merge PDF Files Programmatically

Combine PDF Files in C#

The following are the steps to merge PDF files in C#.

// Load the source PDF file
using (Merger merger = new Merger(@"c:\sample1.pdf"))
    // Add another PDF file to merge
    // Merge PDF files and save the resultant file

Java Program to Merge PDF Files

Java developers can follow the steps below to combine multiple PDF files.

// Load the source PDF file
Merger merger = new Merger("c:\sample1.pdf")

// Add another PDF file to merge
// Merge PDF files and save the resultant file"c:\merged.pdf");


How to combine multiple PDF files into one?

Upload the PDF files and press the “Merge” button to start the process. Once finished, you will see the options to download or copy the link or resultant file.

What does happen with the uploaded and resultant PDF files?

The uploaded files will be removed automatically after 24 hours. Meanwhile, the files will remain safe and protected.

How can I create my PDF merger app?

You can use our standalone .NET or Java libraries.

Can I get a license to evaluate the library?

You can acquire a free temporary license to test the API without evaluation limitations.

Ask a Question

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