Split PDF
What Split PDF actually does
A split instruction should never turn into a different successful-looking job. This workspace parses the same strict page language as the CLI, previews every output group, blocks malformed or out-of-range terms, and makes omitted or repeated pages an explicit decision. The resulting PDF files and manifest are built locally in a dedicated worker.
How to use it
- Choose a PDF up to the tested 50 MiB and 60-page browser limits; low-resolution page previews render locally.
- Use every page, one file, every N pages, visual split boundaries, or advanced ranges where semicolons start new files and commas stay inside one file.
- Review group names, page order, omissions, duplicates, and page-copy caveats, then download one PDF or a manifest-bound ZIP.
Useful for
- Separate a packet, scan, workbook, or exhibit set at visible page boundaries.
- Create exact noncontiguous or descending page groups with a deterministic range language.
- Produce locally processed parts with page sequences and SHA-256 hashes recorded for handoff.
Limits worth knowing
- Browser input is capped at 50 MiB and 60 pages, and output at 250 MiB; larger jobs should use the local CLI.
- Page copying is not a complete PDF catalog clone and can lose or alter bookmarks, forms, attachments, labels, signatures, tags, actions, and other document-level features.
- The output is rearranged, not sanitized; page links or actions that survive copying may remain active.
Questions people ask
How do PDF split ranges work?
Commas join pages inside one output and semicolons start another output. For example, 1-3;4-6 makes two three-page PDFs, while 1-3,4-6 makes one six-page PDF. Invalid terms never fall back to another mode.
Can a page appear in two split files?
Yes, but cross-output duplication is shown and requires a separate acknowledgement. Omitted pages require their own acknowledgement, and both reset whenever the plan changes.
Is the PDF uploaded?
No. After the route loads, PDF reading, thumbnails, page copying, ZIP creation, hashing, and downloads happen in this browser tab with locally bundled runtime code.