How to Merge PDF Files for Free (Combine PDFs into One)

The fastest free way to merge PDFs is to use an online tool like iLovePDF or Smallpdf — upload your files, drag them into order, and download one combined PDF. For a fully offline option, you can also print multiple PDFs into a single file through a browser. If the combined file ends up large, you can shrink it before sending.

Method 1: Online merger (easiest)

Use iLovePDF Merge or Smallpdf Merge:

1. Click Select PDF files and upload all the files you want to combine.
2. Drag thumbnails to reorder them.
3. Optionally remove a page by clicking the trash icon on it.
4. Click Merge and download the combined file.

Both are free with daily limits and no watermark.

Method 2: Google Chrome (offline, no upload)

Works if you have the PDFs open as browser tabs.

1. Open the first PDF in Chrome.
2. Press Ctrl + P (or Cmd + P) and set destination to Save as PDF.
3. Repeat for each PDF, saving each to the same folder.
4. Reopen Chrome → drag all saved PDFs into one window so they appear as tabs, then print the whole window as a single PDF.

This is clunkier than an online tool, but keeps your documents entirely on your computer.

Method 3: Preview (Mac only)

1. Open the first PDF in Preview.
2. View → Thumbnails, then drag the other PDF files’ thumbnails into the sidebar where you want them.
3. File → Export as PDF.

FAQ

Is merging PDFs free?

Yes. iLovePDF and Smallpdf merge files free with daily limits. Mac’s Preview is unlimited and offline.

Can I merge PDFs without uploading them anywhere?

Yes — use Chrome’s print-to-PDF (Method 2) or Mac’s Preview (Method 3).

Will merging change the quality or formatting?

No — merging concatenates the files as-is. Pages keep their original formatting, order, and quality. Need to change the text afterward? See how to edit a PDF.