Split PDF by Bookmarks & Table of Contents Studio
ProExtract individual chapters, sections, or modules from eBooks, technical manuals, research reports, and legal filings using embedded PDF bookmarks and outline trees.
Select or Drop Bookmarked PDF Document
Upload eBooks, research manuals, court records, or annual reports with Table of Contents.
Full Outline Tree Extraction
Seamlessly parses deeply nested PDF outline structures and resolves exact destination page indices with 100% precision.
Granular Level Filtering
Choose to split strictly by top-level chapters (Level 1), include sub-sections (Level 2), or individually cherry-pick exact sections.
100% Private Client-Side
All document parsing, page extraction, and ZIP compression run directly in your browser memory with zero external cloud uploads.
How to Split a PDF by Chapters and Embedded Bookmarks
Upload Document
Upload your eBook, manual, research paper, or bookmarked document.
Select Chapters & Levels
Review the extracted outline tree and choose whether to split by top-level chapters or specific sections.
Download Chapters
Click Split & Generate to download all separated chapter files or a complete organized ZIP archive.
Frequently Asked Questions
What if my PDF does not contain embedded bookmarks?
Our studio automatically scans page text headings (e.g. Chapter 1, Section 2) to build an automated outline. You can also manually add custom split milestones by clicking Add Milestone.
How are page ranges computed for each chapter?
Each selected bookmark starts on its designated page and extends up to the page immediately preceding the next active bookmark milestone.
Are my copyright books and sensitive documents stored anywhere?
No. All operations run 100% locally inside your web browser using WebAssembly. No files are ever sent to any remote server.
How to Use Split by Bookmarks
Split chapters or sections using the embedded PDF bookmark outline table. Follow the quick steps below to operate this tool with maximum speed and complete local privacy.
Step-by-Step Instructions
Simple, actionable steps to use Split by Bookmarks efficiently.
Upload Bookmarked PDF
Upload your eBook, manual, legal document, or report containing bookmarks.
Select Chapters & Depth
Choose top-level chapters (Level 1) or specific nested sections from the outline tree.
Extract & Download
Click 'Split & Generate' to download all chapters as separate PDFs or a complete ZIP package with TOC manifest.
How It Works & Capabilities
Technical advantages and operational functions of this tool.
1. In-Memory Input
Files or text inputs are ingested directly into active browser RAM. No temporary files or logs are ever transmitted to any external server.
2. Client-Side Processing
Calculations, transformations, and compilations are performed locally utilizing WebAssembly and modern JavaScript engines for real-time speed.
3. Instant Local Export
Save your results immediately to disk or copy data to clipboard. Outputs maintain complete original quality with zero watermarks.
Frequently Asked Questions
Clear answers about privacy, limitations, and how Split by Bookmarks functions.