Split Modes
Batch Split PDFs splits a single PDF into multiple smaller files. The Pages per file setting controls how the split works.
Page-by-page split (pages per file = 1)
Set Pages per file to 1 to extract every page as its own file.
A 12-page PDF becomes 12 files:
document_001.pdf ← page 1
document_002.pdf ← page 2
...
document_012.pdf ← page 12
This is useful for:
- Extracting individual slides from a presentation PDF
- Separating scanned documents that were merged together
- Preparing individual pages for upload or sharing
Chunk split (pages per file = N)
Set Pages per file to any number greater than 1 to group pages into fixed-size chunks.
A 50-page PDF split into 10-page chunks becomes 5 files:
document_001-010.pdf ← pages 1–10
document_011-020.pdf ← pages 11–20
document_021-030.pdf ← pages 21–30
document_031-040.pdf ← pages 31–40
document_041-050.pdf ← pages 41–50
If the total page count is not evenly divisible, the last chunk contains the remaining pages:
document_001-010.pdf ← pages 1–10
document_011-020.pdf ← pages 11–20
document_021-023.pdf ← pages 21–23 (3 pages remaining)
Output file naming
Output files are named using the source PDF filename (without extension) plus a zero-padded chunk number or page range:
| Pages per file | Example output names |
|---|---|
| 1 | report_001.pdf, report_002.pdf, … |
| 10 | report_001-010.pdf, report_011-020.pdf, … |
| 25 | report_001-025.pdf, report_026-050.pdf, … |
Zero-padding ensures files sort correctly in filename order in Windows Explorer.
Live preview
Before splitting, the app shows a live count of how many files will be created based on the current Pages per file setting and the total page count. This updates as you change the setting so you can experiment before committing.