Open an online PDF merger tool (e.g., Smallpdf, iLovePDF, PDF24)
Upload the PDF files
Reorder files if needed
Select “Merge” or “Combine”
Download the merged PDF
Use Adobe Acrobat Pro:
Open Acrobat Pro
Select “Combine Files”
Add the PDF files
Arrange the order
Click “Combine”
Save the output PDF
Use macOS Preview:
Open the first PDF in Preview
Open thumbnails sidebar
Drag additional PDFs into the thumbnail sidebar
Reorder thumbnails as needed
Export as a new PDF
Use Windows (Microsoft Edge):
Open the first PDF in Edge
Print to PDF (if supported) and repeat for each file, then merge via a PDF merger tool or editor
Use command line (qpdf) on Linux/macOS:
Install qpdf
Run: `qpdf –empty –pages file1.pdf file2.pdf file3.pdf — output merged.pdf`
Use command line (Ghostscript) on Linux/macOS (alternative):
Run: `gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -sOutputFile=merged.pdf file1.pdf file2.pdf file3.pdf`