The parts are packed into a single ZIP on your Mac, named after the original with a page or part number, and nothing is uploaded at any stage. Pages are copied unchanged, so text stays selectable and scans keep their resolution. Very large documents are handled too: above 200 MB Bindery switches to big-file mode and streams the file, so a two-gigabyte scan splits on a MacBook with a few megabytes of memory in use, though the size-based split needs the file loaded and is unavailable there. For hand-picked pages, Extract pages does that on a visual board.
How it works
- Open Bindery in your Mac browser and drop the PDF into Split
- Choose every page, every N pages, at bookmarks, or under a size
- Download the ZIP of parts — built on your Mac, nothing sent anywhere
Questions people ask
Can I split by file size on a Mac?
Yes. Choose “under a size”, type the limit in megabytes, and Bindery produces the fewest consecutive parts that each stay under it — checking by writing each part rather than estimating. It is the answer to mail caps and e-filing limits, and it needs the file in memory, so files over 200 MB use the page-count modes.
Where do the files go?
Into a ZIP that downloads to your Mac’s Downloads folder like any file; in Chrome or Edge you can instead pick a folder and have every result saved straight into it. Nothing is stored anywhere else, because nothing was uploaded.
Do I need Preview or Acrobat for anything?
No. Bindery renders page previews with its own engine in the browser, writes the parts with its own PDF library and packs the ZIP itself. Preview is useful afterwards to open a part and confirm the pages are the ones you expected.