Merge PDF

How to Merge PDFs on Mac and Windows

Neither Windows nor Mac makes merging PDFs obvious. Windows has no built-in merge feature at all, and Mac's Preview app hides the option in a way that trips up even experienced users. Here are the three best free methods — one works on both platforms in under a minute.

Fastest method: merge PDFs in your browser — works on Mac and Windows.

Open PDF Merge Tool →

Method 1: Browser Tool (Mac & Windows) Mac + Windows

This is the fastest method and works identically on both operating systems — no software to install.

  1. Open gotopdf.net/merge-pdf/ in any browser (Chrome, Safari, Edge, Firefox).
  2. Click "Select files" or drag your PDF files onto the drop zone. Add as many as you need.
  3. Click Merge PDF.
  4. Download the combined PDF.

Your files are never uploaded to any server — all merging happens locally in your browser. Works on Windows 10, Windows 11, macOS Ventura, Sonoma, and later.

Method 2: Preview on Mac Mac only

Mac's built-in Preview app can merge PDFs — but the steps are not obvious. Here's the correct way:

  1. Open the first PDF in Preview.
  2. Go to View → Thumbnails to show the sidebar.
  3. Drag a second PDF file from Finder into the thumbnail sidebar — drop it between pages to insert it at that position, or at the end to append it.
  4. Repeat for any additional PDFs.
  5. Go to File → Export as PDF (not Save — that would overwrite the first file only).

Common mistake: Using File → Save instead of Export as PDF. Save only saves the first document; Export as PDF saves the full merged document.

Limitation: Works well for a few files, but drag-and-drop becomes awkward with many PDFs or when precise page ordering matters.

Method 3: Microsoft Print to PDF (Windows) Windows only

Windows doesn't have a native merge feature, but you can approximate it using Print to PDF — though it's more limited than a real merge:

  1. Open the first PDF in Microsoft Edge (the default PDF viewer in Windows 10/11).
  2. Press Ctrl+P to open Print.
  3. Select Microsoft Print to PDF as the printer.
  4. Print. Save the output.

This only works for one PDF at a time. For true merging of multiple files on Windows, the browser tool (Method 1) is the only free built-in-free option that handles multiple files cleanly.

Comparison: Which Method Is Best?

Merging PDFs on iPhone and Android

The browser merge tool also works on mobile. Open gotopdf.net/merge-pdf/ in Safari (iPhone) or Chrome (Android), select your PDF files, and merge them. The result downloads directly to your device.

Frequently Asked Questions

Is there a free way to merge PDFs on Windows without software?

Yes — use the browser tool at gotopdf.net/merge-pdf/. It runs in Edge, Chrome, or Firefox with nothing to install.

Why does Preview on Mac only save one PDF?

You must use File → Export as PDF, not File → Save. Save only updates the original file; Export creates a new merged document.

Will the merged PDF preserve bookmarks and hyperlinks?

GoToPDF's browser tool preserves page content. Internal bookmarks and some hyperlinks may not survive depending on how the originals were created.

Can I merge more than 10 PDFs at once?

Yes. The browser tool has no enforced limit on the number of files.

Merge your PDFs now — free, works on Mac and Windows.

Open PDF Merge Tool →