How to merge multiple PDF files into one file - PC/Laptop or Mobile

🖥️ Method 1: Use a Free Online Tool (No Install Needed)

1. Go to PDF Merge, iLovePDF, or Smallpdf.

2. Upload your 5 PDF files.

3. Arrange the order if needed.

4. Click “Merge” or “Combine”.

5. Download the merged PDF.

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💻 Method 2: Use Adobe Acrobat (If Installed)

1. Open Adobe Acrobat (not Reader).

2. Go to File > Create > Combine Files into a Single PDF.

3. Add the 5 PDFs.

4. Arrange the order.

5. Click Combine.

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🐍 Method 3: Use Python (If You Prefer a Script)

If you're comfortable with Python, use PyPDF2 or pypdf:

python
from PyPDF2 import PdfMerger

pdfs = ['file1.pdf', 'file2.pdf', 'file3.pdf', 'file4.pdf', 'file5.pdf']
merger = PdfMerger()

for pdf in pdfs:
    merger.append(pdf)

merger.write("merged_output.pdf")
merger.close()

Install the package if needed:

bash
pip install PyPDF2

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🧑‍💻 Method 4: macOS Preview App (Free & Built-in)

1. Select all 5 PDFs in Finder.

2. Right-click > Open with Preview.

3. Show the thumbnail sidebar (View > Thumbnails).

4. Drag the pages into one document.

5. Go to File > Export as PDF.

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How to merge many  PDF files into one on mobile — whether you're using Android or iPhone:

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📱 Option 1: Use a Free Mobile App

✅ iPhone / iPad (iOS)

• App: PDF Expert or iLovePDF

• Steps:

  1. Open the app and import your 5 PDFs.

  2. Use the Merge or Combine feature.

  3. Save/export the new merged file.

✅ Android

• App: iLovePDF or PDF Merge

• Steps:

  1. Open the app and select Merge PDF.

  2. Add your 5 PDFs from your phone storage or cloud.

  3. Tap Merge and save/download the new file.

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🌐 Option 2: Use an Online Tool in Your Mobile Browser

Works on both iOS and Android:

• Go to:

  • https://www.ilovepdf.com/merge_pdf

  • or https://www.smallpdf.com/merge-pdf

• Steps:

  1. Tap Select PDF Files.

  2. Upload your 5 files (from device, iCloud, Google Drive, etc.).

  3. Tap Merge PDFs.

  4. Download the merged PDF.