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Merging Multiple PDFs into One Document

26 Dec 2025 Uneek PDF Team

Combining PDFs is useful for creating unified reports, KYC documents, or presentations. This guide covers how to merge PDFs using online tools, desktop software, and command-line methods.

Our Merge PDF tool allows you to upload multiple files and reorder them before merging. Simply select the files, arrange their order, and download the combined PDF. For desktop users, Adobe Acrobat Pro offers “Combine Files” functionality. Free alternatives like PDFsam (PDF Split and Merge) provide similar features. On macOS, use Preview: open all PDFs in the sidebar, drag to reorder, and print to PDF. Windows users can use the built-in “Print to PDF” feature after arranging files in a folder. For command-line users, tools like pdftk or Ghostscript can merge PDFs via scripts. Ensure all files have the same page size and orientation for consistency. After merging, check the resulting PDF for missing pages or formatting issues. If you need to insert pages into an existing PDF, use the “Insert Pages” feature in Acrobat or similar tools. Always keep backups of original files before merging.


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