PDFsam Basic is a free, open source, multi-platform software designed to: * Merge PDF files (the entire documents or selected page ranges), retaining or discarding bookmarks, acroforms and generating or not a table of contents. * Split PDF files by pages (odd, even, single pages, etc.). * Extract a selection of pages from a PDF file. * Split PDF files by size. * Split PDF files by bookmarks level. * Rotate PDF files in batch.