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: Divide a PDF by page numbers, bookmarks, or file size.

: Starting with version 4, PDFsam Basic requires a 64-bit operating system . If you are on an older 32-bit system, look for version 3.3.7 in the "32-bit versions" section of the official download page. PDFsam: Split and merge PDF files. Free and open source

: You can access specific version archives (e.g., v6.0.0 or v5.4.1) on the PDFsam SourceForge mirror, which hosts various .zip formats for different operating systems.

: Unlike online tools, PDFsam processes your documents locally on your computer. Installation vs. Portable Zip Windows Downloader (.exe/.msi) Portable Archive (.zip) Setup Requires installation on the system. Just extract and run; no install needed. Portability Fixed to the host computer. Can be run from a USB drive. Registry May add entries to Windows registry. Leaves no personal info or registry traces.

: Take pages alternately from two PDFs or rotate individual pages.

: Visit pdfsam.org to find portable zip archives for Windows, macOS, and Linux.