FastOS Tools
FastOS Tools

PDF Merger

Merge multiple PDF files into one online. Combine PDF documents easily.

Upload PDF Files

Select multiple PDF files to merge. You can reorder them below.

Introduction

The PDF Merger tool lets you combine multiple PDF files into a single document quickly and securely in your browser. It is perfect for organizing reports, contracts, lecture notes, or scanned pages into one clean file.

When to use this tool

Use this tool whenever you need to join several PDFs: merging chapters into one ebook, combining invoices into a monthly report, or grouping course handouts before sharing.

How to use

1

Add PDF files

Click the upload area or drag and drop multiple PDF files into the tool. You can add files from different folders or systems.

2

Reorder pages or files

Arrange the PDFs in the exact order you want them to appear in the final document by dragging items up or down.

3

Start merging

Click the merge button. The tool will combine all selected PDFs directly in your browser without uploading them.

4

Download the merged PDF

Save the new combined PDF file and share it via email, upload it to cloud storage, or archive it with your documents.

Examples

Combining scanned pages

If you scanned a multi-page contract as separate files, you can merge them into a single, properly ordered PDF before sending to clients.

Preparing a course pack

Merge slides, exercises, and reading materials into one PDF so students only need to download a single file.

FAQ

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