There are lots of websites that will do this for you, but most of them upload your files to a stranger’s server. That’s not great when your PDF is a bank statement or a tax form. The good news: there’s a free, trustworthy tool that does it all on your own device — nothing uploaded, no account, no trial-that-becomes-a-subscription.
Use a free, safe tool
Open the tool
See our write-up of the free PDF tool we recommend. The page explains why it’s safe and links out to the tool itself.
Pick your files
Once you’re in the tool, click Choose files and hold Ctrl (on Windows) or ⌘ (on Mac) while clicking each PDF you want to join together. Then click Open. On a phone, tap each file one at a time.
Put them in the right order
Drag the file names up or down in the list until they’re in the order you want the final PDF to read.
Click Merge and then Save
Click the Merge button. After a few seconds, a Download button appears — click it to save the combined PDF to your computer or phone.
If you prefer a computer program
- On a Mac: Open both PDFs in Preview. Click View → Thumbnails to see the small page previews on the left. Then drag pages from one PDF into the other. Save with File → Export as PDF.
- On Windows 10/11: Windows has no built-in PDF merger. You have two good options: the browser-based tool above (no install), or a free installed app called PDFGear — we have a separate Windows install guide and a basics walkthrough for it.
- Prefer an app on your Mac too? Mac Preview handles simple merges, but for anything beyond that (compressing, signing, filling forms), see our PDFGear Mac install guide.
What’s next
Want to make the new combined PDF smaller before emailing? The same tool can compress a PDF — see the recommended tool page for the link.