Split Odd and Even Pages
Split a PDF into two files: odd pages and even pages
About this tool
Split Odd and Even Pages divides a single PDF into two output files: one containing all odd-numbered pages and one containing all even-numbered pages. This is the inverse of duplex-scan recombination — when you scan a double-sided document with a single-sided scanner, you typically get one file with odd pages and one with even pages; this tool helps you split them apart again, or prepare files for the merge step. Common scenarios include separating front/back pages for printing, isolating answer pages from question pages in exam materials, and handling legal documents where odd/even pages are reviewed by different parties. The original page order within each output is preserved. All processing happens locally in your browser using pdf-lib; the source file never leaves your device. Maximum file size is 50 MB.
Frequently Asked Questions
Will I get two separate downloads?
Yes. The tool produces two PDF files — one for odd pages, one for even pages — and triggers two downloads in sequence.
Is the order within each output preserved?
Yes. Pages keep their original order within each output. The odd file has pages 1, 3, 5, ...; the even file has pages 2, 4, 6, ...
What if my PDF has only odd-numbered or only even-numbered pages?
Only the non-empty file will be downloaded. If your PDF has 5 pages, you'll get one file with 3 odd pages and one with 2 even pages.
Can I re-merge the files later?
Yes — use a merge PDF workflow with interleave mode. This tool's outputs are designed to be merge-ready.
Is my PDF uploaded to any server?
No. All processing is done locally in your browser using pdf-lib. The file never leaves your device.
What is the file size limit?
50 MB. The limit is set client-side and depends on your browser's memory headroom.
When is this most useful?
Duplex scan recombination, separating front/back for printing, exam-paper handling where answer pages are even and question pages are odd.
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