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PDF Merge

Combine multiple PDF files into one document easily and securely

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Merge PDF Files

Combine multiple PDF files into one document.

or drop PDFs here

PDFs Merged Successfully!

Your files have been combined into a single PDF.

Organize PDF Order

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Merge PDF Files Online for Free

Effortlessly merge PDF online with SpacePDF’s free and intuitive tool. You can combine multiple PDF documents into a single, cohesive file right from your web browser. As a result, our service simplifies document management, allowing you to organize your files securely, easily, and without any installations.

Screenshot of SpacePDF's online PDF merger interface showing documents combining.

Why Use SpacePDF’s Merge PDF Online Tool?

How to Merge PDF Files Online

Time needed: 1 minute

Our intuitive online PDF combiner makes it simple to merge your PDF documents. Follow these straightforward steps to combine your files accurately:

  1. Upload Your PDF Documents

    First, click the “Select PDF File” button to choose multiple PDFs. Alternatively, you can simply drag and drop them into the designated area.Uploading multiple PDF files for online merging

  2. Arrange Pages in Order

    Once uploaded, you will see thumbnails of all your PDF pages. Then, you can drag and drop the pages to arrange them in your desired order.Arranging PDF pages order before merging them online

  3. Merge Your Files

    After arranging your documents, click the prominent “Merge PDF” button. The tool will then quickly combine all the selected PDFs into a single file.Clicking the "Merge PDF" button to combine documents online

  4. Download Combined PDF

    Finally, once processing is complete, your new PDF will be ready. Click the “Download PDF” button to save the combined file to your device. Your original files will remain untouched.Successfully downloading the merged PDF file from the online tool

Infographic illustrating the process to merge PDF online efficiently.

Common Uses for Merging PDF Documents

The SpacePDF Advantage: Security and Privacy

At SpacePDF, we make your privacy and data security our top priorities. When you use our merge PDF online tool, we process your documents entirely within your web browser. This means we never upload your sensitive PDF files to our servers. Therefore, your data remains on your device, ensuring maximum confidentiality and peace of mind.

Is this PDF merger tool completely free to use?

Yes, absolutely. Our Merge PDF online tool is 100% free. There are no hidden costs or limits on how often you can combine PDF files.

Do I need to install any software to combine PDF files?

No, not at all. Our PDF merger tool is entirely web-based. Because it runs in your browser, you don’t need to download or install anything.

How secure are my files when I merge PDFs online?

Your privacy is our top priority. In fact, all file processing, including merging PDF documents, occurs locally in your browser. Since we never upload your files to our servers, your data remains completely private.

Can I reorder pages before merging?

Yes, and this is a key feature. Our tool allows you to easily drag and drop pages or entire documents to arrange them in your desired order before you combine the PDF files.

Is there a file size limit for merging PDFs?

No, there are no specific limits. Consequently, our online PDF merger supports PDF files of any size, making it suitable for both standard and large documents.

What if my PDF is password-protected?

Currently, our online PDF merger does not support password-protected files directly. Therefore, please ensure you unlock your PDFs before attempting to combine them.

Explore More Free PDF Tools

SpacePDF offers a comprehensive suite of free PDF tools to simplify your document management. Beyond merging PDFs, you can explore other helpful tools like Crop PDF, Remove PDF Pages, and PDF Organizer. Additionally, you can convert formats with our PDF to JPG and JPG to PDF tools. We are committed to providing secure, efficient, and user-friendly solutions for all your PDF needs.