Merge PDF - Combine PDF Files Online Free | PdfPix

Merging PDFs...

Do not close your browser. Wait until your files are uploaded and processed! This might take a few minutes.

What is Merge PDF Files?

Combine multiple PDF documents into one PDF online for free. Drag-and-drop to reorder pages. 100% private in-browser processing.

When should you use it?

This tool is useful when you need to rearrange, combine, split, or prepare PDF pages for sharing, submissions, and document cleanup.

Browser-based PDF processing

PdfPix is designed for direct browser workflows. For most tools, files stay on your device during processing, which helps reduce upload delays and supports privacy-focused document handling for everyday PDF tasks.

How to use Merge PDF Files

Select the PDF files you want to combine by clicking 'Select PDF files' or dragging them into the drop zone.

Drag and drop the file cards to arrange them in the exact order you want them merged.

Click the 'Merge PDFs!' button to combine your files locally in your browser and automatically download the merged document.

Why choose PdfPix for Merge PDF Files?

100% Secure & Private

Unlike traditional web converters, all processing happens locally inside your browser. Your sensitive PDF files are never uploaded to any remote servers.

No File Size Limits

Because conversions run locally using your computer's CPU power, we don't impose any artificial file size caps, queue delays, or wait times.

100% Free Forever

Get full access to all features without subscriptions, credit card inputs, or registration walls. No branding watermarks added to your outputs.

Universal Compatibility

PdfPix runs smoothly inside any modern browser on macOS, Windows, Linux, iOS, or Android, without needing external applications or plugins.

Frequently Asked Questions

Is it safe to merge my PDFs with PdfPix?

Yes, absolutely. Unlike other online tools that upload your files to external servers, PdfPix processes all documents locally inside your web browser. Your confidential documents never leave your computer.

Is there a limit on how many files I can merge?

No. Since the processing runs locally on your own computer, there are no artificial limits or queues. You can merge as many PDF files as your computer's browser memory can handle.

Does merging PDFs preserve formatting and page size?

Yes, PdfPix preserves all original fonts, styles, layouts, graphics, and page sizes of each PDF being merged.