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PDFsam Basic 5.4.5.0, released by Sober Lemur S.r.l., is a free, open-source utility that belongs to the PDF software category and has evolved through 33 successive builds since its inception. The program is engineered to perform the most common page-level manipulations—splitting large documents into smaller chapters, merging separate reports into a single file, extracting individual pages for redistribution, interleaving pages from two sources to create comparative hand-outs, and rotating mis-scanned sheets—without altering the underlying text or images. Because it is written in Java, the same binary runs identically on Windows, macOS and Linux, making it a lightweight yet cross-platform complement to full-scale PDF editors. Typical use cases include attorneys who need to isolate exhibits from discovery bundles, teachers assembling reading packets from multiple syllabi, accountants rotating and collating scanned invoices, and archivists reconstructing digitized journals from single-page scans. The interface presents four self-explanatory modules—Merge, Split, Extract and Rotate—each of which can process an unlimited number of files in a single pass while preserving bookmarks, form fields and annotations. Command-line switches are also exposed, so the functionality can be scripted into larger workflows or scheduled tasks. As an open-source project under the GNU Affero General Public License, the code is publicly auditable, community-extensible and carries no advertising or watermarking. PDFsam Basic is available for free on get.nero.com, with downloads provided via trusted Windows package sources such as winget, always delivering the latest version and supporting batch installation of multiple applications.
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