Vellum cuts a large PDF into several files, each kept under the maximum size you choose, in MB — 10 MB by default, the most common email attachment limit. Every chunk is measured on the file actually exported, not estimated, and delivered in a ZIP archive along with the page count and weight of each part. A single page too heavy to fit under the limit on its own forms its own chunk and stays flagged. The split is computed in your browser, without the document ever leaving your device.
Choose a maximum size — 5, 10, 20 or 25 MB — and Vellum cuts the document into several chunks that each stay under that limit, delivered in a ZIP archive.
Every chunk is measured on the file actually exported, not estimated. A single page too heavy to fit under the limit on its own forms its own chunk and stays flagged.
Yes, the split is computed in your browser, without the document ever leaving your device, free of charge and unlimited.
Vellum — free PDF tools whose processing stays on your device.