# How to Merge PDFs on Android Phone (Step-by-Step)
Need to combine PDF files on your Android phone? You've got options—and you don't necessarily need to install another app eating up your storage.
Android gives you more flexibility than iOS when it comes to file management. You can merge PDFs using your browser, Google Drive, or even some built-in features depending on your phone manufacturer.
I'll walk you through every method, from the simplest (browser-based) to the most powerful (for advanced users). By the end, you'll know exactly how to merge PDFs on Android whenever you need to.
Why Merge PDFs on Your Android Phone?
Real-world scenarios where mobile PDF merging saves the day:
You're at a client meeting and need to combine proposal documents before presenting. Your boss texts you three separate PDFs that need to be one file for a stakeholder email. You're working from a coffee shop without your laptop. You scanned multiple pages with your phone and want one consolidated PDF.
Bottom line: Life happens away from desks. Being able to merge PDFs from your Android phone is genuinely useful.
Method 1: Use Chrome Browser + AltaPDF (Recommended)
This is the method I use most often. It's fast, works on any Android device, and requires zero app installations.
What You Need:
- Chrome browser (or any mobile browser)
- Internet connection
- Your PDF files stored somewhere accessible
Complete Step-by-Step Guide:
Step 1: Open Chrome on your Android phone
You can use any browser, but Chrome works best in my experience. Samsung Internet and Firefox work fine too.
Step 2: Navigate to altapdf.com
Type altapdf.com into the address bar and go. The site automatically detects you're on mobile and adjusts the layout.
Step 3: Tap the "Merge PDF" tool
Right on the homepage. Can't miss it.
Step 4: Upload your PDF files
Tap "Select Files" or "Choose Files" (wording varies by browser).
This opens Android's file picker. You can access files from:
- Device storage
- SD card
- Google Drive
- Dropbox
- OneDrive
- Recent downloads
- Any cloud service you've added
Pro tip: To select multiple files, tap the first one, then tap "Show" or check the multi-select option (usually three dots in the corner). Then tap additional files.
Step 5: Arrange the PDFs in your preferred order
You'll see thumbnails showing the first page of each PDF.
Drag and drop to reorder them. The arrangement you see is the final order in your merged PDF.
Take five seconds to double-check. Way easier to fix now than after merging.
Step 6: Tap "Merge PDFs"
The files upload to AltaPDF's servers and merge there. Usually takes 5-20 seconds depending on file sizes.
You'll see a progress indicator. Don't close the browser or switch apps during this time.
Step 7: Download your merged PDF
Once complete, you'll get a "Download" button. Tap it.
The merged PDF saves to your Downloads folder by default. Some browsers ask where you want to save it.
Step 8: Rename and organize
Open your Files app, navigate to Downloads, and rename "merged.pdf" to something descriptive.
Total time: Less than one minute for most merging tasks.
Why This Method Is Best:
✅ No app installation - Uses tools you already have
✅ No storage wasted - Processing happens server-side
✅ Works anywhere - Any Android device, any manufacturer
✅ Always updated - Web tools improve automatically
✅ Completely free - No subscriptions or trials
✅ Multi-cloud support - Access files from any cloud service
One caveat: Requires internet connection. If you're offline, check Method 2.
Method 2: Google Drive (Built-in for Most Android Phones)
Google Drive is pre-installed on most Android devices. While it doesn't have a direct "merge PDFs" button, there's a workaround that works.
The Google Drive Method:
Step 1: Upload your PDFs to Google Drive
If they're not already there, upload them:
- Open Google Drive app
- Tap the "+" button
- Select "Upload"
- Choose your PDF files
Step 2: Open the first PDF
Tap to open it in Google Drive's PDF viewer.
Step 3: Open in Google Docs
Tap the three dots menu (⋮) and select "Open with" → "Google Docs"
This converts the PDF to an editable Google Doc format.
Step 4: Repeat for other PDFs
Open each PDF you want to merge in Google Docs.
Step 5: Copy and paste content
Now here's the tedious part. Go to each document, select all (Ctrl+A or three-dot menu → Select all), copy, and paste into your main document.
Step 6: Export as PDF
Once everything's combined in one Google Doc:
- Tap the three dots menu
- Select "Share & export"
- Choose "Save as PDF"
- Download to your device
Verdict: This method works, but it's clunky. Formatting often breaks, especially with complex PDFs. Images might shift. Tables get weird.
I only recommend this method if:
- You're completely offline
- Files are already in Google Drive
- You're okay with potential formatting issues
For most people, the browser method (Method 1) is way better.
Method 3: Samsung Notes (Samsung Devices Only)
If you have a Samsung phone, you've got a hidden gem: Samsung Notes can import and merge PDFs.
Samsung Notes Method:
Step 1: Open Samsung Notes app
Comes pre-installed on Samsung Galaxy devices.
Step 2: Create a new note
Tap the "+" button.
Step 3: Import first PDF
Tap the three dots menu → "Import PDF"
Select your first PDF. It imports as images in the note.
Step 4: Import additional PDFs
Scroll to the bottom of the note and repeat: three dots → "Import PDF" → select next file.
Each PDF appends to the same note.
Step 5: Export as PDF
Once all PDFs are imported:
- Tap three dots menu
- Select "Export as PDF file"
- Choose save location
Result: All PDFs combined into one file.
Limitations:
- Only works on Samsung devices
- PDFs convert to images (increases file size)
- Not great for text-heavy documents (searchability lost)
- Can be slow with large files
Best for: Quick merges of scanned documents or image-based PDFs on Samsung phones.
Method 4: Files by Google (Free App)
If you prefer using an app, Files by Google is a solid choice. It's lightweight, free, and developed by Google.