Exact Page Targeting
Each bookmark's destination page becomes the precise cut point.
Split PDF at Bookmarks
Let your PDF's own bookmark structure determine every split point. Automatic, accurate, and free.
Splitting at Bookmarks vs. Splitting by Page Range
Page-range splitting requires you to know exactly which pages correspond to each section. Bookmark splitting doesn't.
When you split a PDF at its bookmarks, the tool reads the document's built-in outline - the same data your PDF reader uses to show the table of contents panel - and automatically identifies the exact page where each section begins.
This eliminates counting, guessing, and manual entry. Even a 600-page technical manual can be split into 40 correctly bounded section files in under a minute.
How Splitting at Bookmarks Works
The tool reads PDF outline entries and uses their target pages as split boundaries.
1. Upload the PDF
The tool reads the PDF outline (bookmark tree) immediately on upload.
2. Confirm Split Points
Every bookmark entry is shown with its name. Each one is a split point.
3. Receive Individual Files
Each section - from one bookmark's page to the next - is saved as a standalone PDF.
Precision Splitting at Every Bookmark
No page miscounts, no missed sections, no manual work.
Nested Bookmark Support
Handles multi-level bookmark trees for complex document structures.
Named Output Files
Output files are named after their bookmark titles for easy identification.
No Manual Page Entry
Zero typing of page ranges - the bookmark data does it all.
Safe & Encrypted
Your document is processed over a secure HTTPS connection.
Mobile Ready
Split at bookmarks on any device, including phones and tablets.
Why Bookmark-Based Split Points Are Always Accurate
PDF bookmarks store the exact page number (and even scroll position) of each section. By splitting at these stored coordinates, iMZi PDF guarantees no content is ever cut mid-sentence or mid-page.
Documents That Benefit from Splitting at Bookmarks
Any well-structured PDF with a bookmark outline is a perfect candidate.
Technical manuals with chapter bookmarks
Annual reports divided by section
Legal contracts split by clause
Academic theses split by chapter
Training guides split by module
Product catalogues by category
Frequently Asked Questions
Find answers to common questions about this tool.
Accurate Splitting at Every Bookmark Point
Upload your PDF and let the bookmark outline define every split - automatically.