How to Merge PDF Files on iPhone, Android and Mac (Free)
You don't need to download an app to merge PDFs on your phone or Mac. Here's the fastest free method for iPhone, Android and Mac users.
Merging PDFs without installing an app
Most guides tell you to download a PDF app. But you don't need one. PDFDocker runs entirely in your mobile browser — Safari on iPhone, Chrome on Android — and merges PDF files instantly without any installation.
How to merge PDFs on iPhone (Safari)
Step 1 — Open Safari and go to PDFDocker
Open Safari on your iPhone and navigate to pdfdocker.com/tools/merge.
Step 2 — Tap "Click to browse"
Tap the upload zone. Your iPhone will show options to choose from Photos, Files, or iCloud Drive.
Step 3 — Select your PDF files
Navigate to where your PDFs are stored. In the Files app, you can select multiple files by tapping "Select" first, then tapping each PDF.
Step 4 — Merge and download
Tap the Merge button. When complete, tap the download link — Safari will save the merged PDF to your Files app or prompt you to share it.
Tip for iPhone: If you can't find your PDFs, check Files → On My iPhone, or Files → iCloud Drive. PDFs from email attachments are often in the Downloads folder.
How to merge PDFs on Android (Chrome)
Step 1 — Open Chrome
Open Chrome on your Android device and go to pdfdocker.com/tools/merge.
Step 2 — Tap to upload
Tap the upload zone. Your file picker will open showing your Downloads folder and internal storage.
Step 3 — Select multiple PDFs
Long-press the first PDF, then tap additional PDFs to select multiple files at once. Tap Open.
Step 4 — Merge and save
Tap Merge. When finished, tap the download link — Chrome will save the merged PDF to your Downloads folder.
How to merge PDFs on Mac (without Adobe)
Method 1 — Use PDFDocker in your browser (fastest)
Open any browser on your Mac and go to pdfdocker.com/tools/merge. Drag and drop your PDFs onto the page and click Merge. No installation required.
Method 2 — Use Preview (built into macOS)
Mac's built-in Preview app can also merge PDFs:
- Open the first PDF in Preview
- Go to View → Thumbnails to show the sidebar
- Drag additional PDF files into the sidebar at the position where you want them inserted
- Go to File → Export as PDF to save the merged document
Preview is great for simple merges but PDFDocker is faster for combining many files and gives you more control over order.
Which method should you use?
| Device | Best Method | App Required? |
|---|---|---|
| iPhone | PDFDocker in Safari | No |
| Android | PDFDocker in Chrome | No |
| Mac | PDFDocker or Preview | No |
| Windows | PDFDocker in any browser | No |
Frequently asked questions
Can I merge PDFs using the iPhone Files app?
The native Files app doesn't support PDF merging. Use PDFDocker in Safari instead — it's just as fast and works without any download.
Is there a free PDF merge app for iPhone?
There are many apps, but most have limitations or watermarks. PDFDocker in Safari is faster (no install) and completely free with no watermarks.
Can I merge PDFs on Android for free?
Yes, using PDFDocker in Chrome on Android — no app download required, no watermarks, completely free.
How many PDFs can I merge at once on mobile?
There's no limit. You can select and merge as many PDFs as your device's memory can handle.