# Split PDF by Bookmark for tax preparers

_Updated July 2026 · Arthize · https://arthize.com/for/tax-preparers/split-by-bookmark_

Arthize lets tax professionals split a PDF by bookmarks in a private workspace — free, with no watermark. Splitting by bookmark divides a document at its chapter or section markers, producing one file per bookmarked section automatically.

## Why tax preparers split a PDF by bookmarks

A tax preparer merges the return with its schedules and supporting documents into one client file, extracts figures from a PDF form into a worksheet, and password-protects the final package.

**Built for tax returns.** Whether it's tax returns, W-2s and 1099s, schedules, Arthize's split pdf by bookmark keeps the work inside your private workspace. Returns contain Social Security numbers and income data; private processing and deletion are essential.

## What matters when you split a PDF by bookmarks

Splitting by bookmark uses the document's own structure to define the cuts.

It saves counting page ranges for chaptered documents.

Each section becomes its own file.

## How to split a PDF by bookmarks

1. **Open the split tool** — Sign in and open the Split tool.
2. **Add your PDF** — Upload a bookmarked document.
3. **Split by bookmark** — Arthize cuts the file at each top-level bookmark.
4. **Download** — Get one file per section.

## FAQ

### How do tax preparers split a PDF by bookmarks for free?

Splitting by bookmark divides a document at its chapter or section markers, producing one file per bookmarked section automatically. On Arthize it's free with no watermark, and the file is deleted after the job — which is why tax professionals can use it for tax returns without a confidentiality risk.

### Is it private to split a PDF by bookmarks sensitive tax returns?

Yes. Returns contain Social Security numbers and income data; private processing and deletion are essential. Files are processed inside your private Arthize workspace and deleted after the job.

### How do I split a PDF by its bookmarks?

Splitting by bookmark divides a document at its chapter or section markers, producing one file per bookmarked section automatically. On Arthize it's free with no watermark and processed privately.

### Can I get one file per chapter automatically?

Splitting by bookmark divides a document at its chapter or section markers, producing one file per bookmarked section automatically. On Arthize it's free with no watermark and processed privately.