Use free online PDF merger tools such as Smallpdf, iLovePDF, PDF24, or Adobe Acrobat online
Upload the PDF files you want to combine
Arrange the files in the desired order
Click the merge or combine button
Download the merged PDF file
Use free desktop software like PDFsam Basic on Windows, Mac, or Linux
Open the app and add your PDF files
Reorder the files if needed
Merge and save the combined PDF
Use built-in preview tools on Mac to combine PDFs
Open PDFs in Preview
Show the thumbnail sidebar
Drag pages from one PDF into another
Save the combined file
Use Google Drive with a PDF merge add-on
Upload PDFs to Drive
Open the add-on and merge the files
Save the merged PDF
Use free browser extensions or open-source tools if you prefer offline merging
Check file size limits and privacy policies before using online tools