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Split a PDF file into multiple PDF files

Pdf Split
How to use
Split one PDF into several PDFs: either every N pages per file, or specified page numbers where each range becomes its own file.
Fill in either method: enter a positive number in “Split every __ pages”, or enter page numbers such as 1-5,8,9 in “Or specify split pages” (pages 1-5, page 8 and page 9 each become a file); presets let you pick odd or even pages in one click.
If both fields are empty, “Start processing” asks you to choose a split method first; when the result contains more than one file it is zipped automatically, and the original file is never modified.