Nothing about the process involves a server. The file is read in your browser, the parts are written there, and the ZIP that holds them is assembled on your device. If you want fewer parts, compress first: Balanced usually makes a scan a fraction of its size with no visible change, and splitting the compressed version yields larger page ranges per part. For anything over 200 MB Bindery switches to big-file mode, which streams the file so it never has to fit in memory — that mode splits every page or every N pages, since a size-based split needs the whole file loaded.
How it works
- Drop the PDF and open Split; select “under a size” (10 MB is the default)
- Check the page board to see the planned parts
- Split and download the ZIP; send the parts as separate messages
Questions people ask
Are the pages inside each part changed in any way?
No. Pages are copied into the parts exactly as they are — text stays selectable, images keep their resolution, and form fields and bookmarks that fall within a part are carried over. Only the boundaries between parts are new, which is why splitting is the right choice when a filing or a record must stay byte-for-byte faithful.
What is the smallest and largest limit I can set?
Anything from 0.2 MB to 500 MB. Very small limits on image-heavy files produce many single-page parts; if one page alone exceeds the limit, that page becomes its own part and the result tells you, because a page cannot be divided.
Does splitting count as one job or many?
One. The free plan counts completed jobs — ten per UTC day — rather than output files, so a split into eight parts is a single job and the ZIP is one download. Cancelling a job midway does not count either, and there is no cap on the size of the file you split.