Are my PDF files safe when merging online?

Yes. GoToPDF processes files locally in your browser — nothing is uploaded to a server. Your documents stay private on your device.

Can I merge PDFs on iPhone or Android?

Yes. GoToPDF works in mobile browsers on both iPhone and Android. Open the Merge PDF tool in Safari or Chrome on your phone and follow the same steps.

Can I rearrange pages when merging?

You can reorder the PDF files before merging. Each file's pages are included in the order the files are listed.

Free online PDF tool — no sign-up needed

Merge PDF Files Online Free

Combine multiple PDF files into one document instantly. Everything runs in your browser — your files are never uploaded to a server. Works on Windows, Mac, iPhone, and Android.

Free local PDF tool

Merge PDF

Drop PDF files here

or browse from your device

Settings

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How to Merge PDF Files in 4 Steps

Drop your files — drag multiple PDFs onto the box above or click "Select files".
Order them — files will merge in the order they appear in the list.
Click Merge PDFs — your browser combines them instantly.
Download — save the merged PDF to your device.

The entire process takes under 60 seconds. No software to install, no account to create.

Best for packets and reports

Use this tool when you have separate files such as a cover sheet, invoice, signed form, and supporting pages that need to become one PDF.

Order matters

Files are merged in the order shown in the file list. Rename files before selecting them if you want a predictable order, such as 01-cover.pdf and 02-form.pdf.

What stays unchanged

Text, images, page size, and orientation are copied into the final document. The tool combines pages without converting them to screenshots.

Frequently Asked Questions — Merge PDF

How do I merge PDF files for free?

Drop your files into the tool above, click Merge PDFs, and download the result. It's completely free with no sign-up.

Is there a limit to how many PDFs I can merge?

No hard limit. You can merge as many files as your browser can handle. Very large batches may slow down on older devices.

Are my files safe when merging online?

Yes. GoToPDF runs entirely in your browser. Nothing is uploaded to any server — your files stay on your device.

Can I merge PDFs on my iPhone or Android?

Yes. Open this page in Safari or Chrome on your mobile device and it works the same way.

Can I rearrange the page order before merging?

You can reorder the files before merging. Each file's pages appear in the order the files are listed.

Does merging PDFs reduce quality?

No. GoToPDF merges the PDF data directly without re-encoding images or text, so quality is preserved.