PDFsam Basic is a desktop application that rearranges existing PDF files rather than creating new ones. Its six tools cover the common jobs: merge joins several documents into one with optional bookmarks and a clickable table of contents, split breaks a file at chosen pages, size, or bookmark levels, and mix interleaves pages so single-sided scans end up in reading order. Rotate fixes sideways pages, extract pulls selected pages into a new file, and insert drops pages from one document into another at a chosen position. Every operation runs on the local files, so nothing is uploaded and no connection is required.
The merge module is where most of the detail lives. Each input file can be included whole or limited to page intervals written as comma-separated ranges, so a chapter can be pulled from one document and an appendix from another in a single pass. Output settings decide what happens to bookmarks, to interactive form fields when two documents contain them, and whether a table of contents is generated with one entry per merged file. For creating PDFs from scratch, a print driver such as Bullzip PDF Printer is the starting point; PDFsam Basic takes over once the files already exist.
PDFsam Basic is useful because page-level PDF surgery is normally the point where people give up and reach for an online service. Everything here happens on the machine that already holds the documents, which matters for contracts, medical records, and anything covered by an internal policy that rules out uploading files to a third party. The tool set mirrors real problems rather than hypothetical ones: a scanner that only handles one side produces two files that mix puts back in order, a report that arrives as one thick document can be split by size for email limits, and a form scanned upside down is fixed by rotating selected pages. Setting a page range per input file means a merge rarely needs a preliminary edit, and the resulting file can carry a table of contents that makes it navigable. Output keeps the original pages as they are, with nothing added to them.
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