Split by Bookmarks

Break a PDF into files using its bookmark (outline) structure.

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Split by Bookmarks: Split PDF Files Using PDF Bookmarks

Split by Bookmarks: So What Is That You Can Do?

Split by Bookmarks is a web-based PDF utility to split a big PDF file into multiple files based on its current PDF bookmarks. Rather than manually creating page ranges or splitting pages one by one, the tool automatically identifies the bookmark structure of your document and uses it to intelligently split up the PDF into well-organised sections.

This is especially helpful for typical structured content like chapters, sections, reports, manuals, books and other types of PDFs. Say a PDF book has bookmarks that say 'Chapter 1', 'Chapter 2' and 'Chapter 3' — Markup Editor allows you to take those markers from the first file and break it up into three different PDF files.

Use the application to split PDF by bookmarks when you need to split the document and maintain its structure less manually.

What is the structure of Split by Bookmarks?

The process is simple. The first step is that you open a PDF which has bookmarks. The tool subsequently scans your PDF bookmarks and recognises what sections they are linked to.

Most bookmarks link to a certain page or part of the document. Using the bookmark placements, this tool identifies where the PDF should be split into multiple parts. The structured PDF has been processed, so it takes the original PDF and splits it into files based on the bookmarks detected.

This makes it much easier to split PDF using bookmarks; here you have no need to check every chapter and enter page ranges yourself.

The basic process is:

  1. Upload your PDF file.
  2. Let the software detect PDF bookmarks.
  3. This tool allows you to split the PDF based on positions of bookmarks
  4. Review the separated files.
  5. Download the final result.

How to Use Split by Bookmarks Online

To use the 'Split by Bookmarks' tool, follow this step-by-step guide.

Step 1: Upload Your PDF File

Press the Upload PDF File button and choose your file to split. Since the tool is compatible with standard PDF format, any PDF that has been bookmarked will do.

Step 2: Detect Bookmarks

When the file is uploaded, the tool scans for bookmarks. There is no manual chapter or section marking—the tool does this automatically.

Step 3: Choose Split Settings

Choose the Split PDF by Bookmarks option. You can split your bookmarks by top-level bookmarks (main chapters) and/or sub-bookmarks (subsections), depending upon your requirements.

Step 4: Process the File

Hit the Split button to begin generating. Based on bookmarks that the tool detects, the file is immediately separated into a series of PDF files.

Step 5: Review and Download

Once processed, you will see the split files ready to download. You can save them one at a time, or you can download all the files combined as a ZIP folder.

These smaller files provide some convenience in organizing chapters, sharing particular sections, segregating documents or even editing different parts if you wish to continue using related tools like Split PDF, Organize, Merge PDF, Alternate & Mix and Extract PDF Pages.

The main features of Split by Bookmarks

Upload PDF File

With this feature, users can now upload their document from their device itself. It is easy, fast and large file support. Bookmarks can only be detected through upload, so this step is necessary without any uploading.

Detect PDF Bookmarks

It automatically detects bookmarks in the file. This comes in handy because many users may not know how to find bookmarks or bookmark a PDF manually. Automatic detection helps to save your time and avoid errors from manual detection.

Split PDF by Bookmarks

This is the core feature. It splits the file into many different PDFs based on bookmark levels. So a book that has 300 pages and 10 chapters could be broken up into 10 PDFs.

Split by Bookmarks to the Rescue – It Resolves Common Issues

Problem: Chapter pages are chapters in books, which can take too long to find via hand searching.

Since the big pdf may contain hundreds of pages. We have to manually find a beginning and the end of each chapter — a daunting task.

Solution: Use the existing PDF bookmarks already in the document. These bookmarks are detected by the tool and are used as reference points while splitting.

Problem: Page Ranges Hard to Work With

If you split a PDF manually, then you most probably would remember the page ranges in this manner: pages 1–25, 26–48 or even 49–75. Things can get confusing, especially when dealing with big documents.

Solution: If the document has a proper bookmark structure, then splitting by bookmarks may also save you from typing out page range information as well.

Problem: PDF Duplication (one big file, complicated organisation, extract pages). A PDF with a lot of chapters or sections can be cumbersome to manage/index/share.

Solution: You can split PDF files based on their bookmarks using chapter-splitting software that divides the document into smaller sections (also called page ranges).

Things To Consider Before You Split

Make sure the PDF you are trying to split with Split by Bookmarks has bookmarks before using the tool. This tool relies on the existing structure of bookmarks to dictate integration points for documents.

Before uploading, it is also a good idea to look at your PDF bookmarks. Ensure that they refer to the accurate chapters or segments. If your bookmarks are not set up correctly, you might not get the split result you expect.

When you are working on large documents, distilling the messy, tangled PDF pages into clean bookmarks will help you organize and review your PDFs much more easily.

Tips for Better Results

When using Split PDF Online By Bookmarks, you should use the following to gain optimal results:

  • Make sure your document has bookmarks before uploading it.
  • If possible, go over the names of bookmarks and their places.
  • Ensure the places you want to book mark sections are what they are
  • Review generated files after processing.
  • Have an unedited copy of the original PDF prior to organizing the split files.

The Split by Bookmarks option works well when the document already has a proper structure. Some very suitable examples of split-able PDFs are books, manuals, reports, and documents with chapters.

Download and Use Your Final Result

Process the PDF, check from the split files, and download it. Download these entire PDFs individually and save them on your device or use these for other purposes.

Split by Bookmarks is an automatic page separator based on the existing PDF bookmark structure, and it allows you to split a large document into smaller documents without the need to remap every page where new chapter or section begins.

Frequently asked questions

Do I need an account to use PDFSplit?

No. Use directly on the website here (split by bookmarks). All you need to do is upload your PDF file; let the tool automatically identify bookmarks, split and download.

Can I split any annotated PDF using bookmarks?

The PDF should include existing bookmarks that indicate to the tool where you want the second half of a document to start. This tool works best with PDFs that have bookmarks for chapters, sections, or other segments.

What is the Split by Bookmarks tool, and how does it work?

Upload your PDFs to the tool first. It detects the PDF bookmarks that are available and splits this document into separate sections or files by bookmark location.

Where do I download split PDF files?

Once the PDF has been processed and split by bookmarks, you can then check back on the result and use the download option below to download the divided PDFs to your device.