Edit PDF Bookmarks Online Free
or drop PDF file here · Supports PDF · Up to 90MB
How PDF Bookmark Editor Works
Fast, private in-browser document processing engineered with enterprise-grade accuracy.
Upload PDF
Upload a document to read and review its existing bookmark hierarchy.
Configure Bookmarks
Add bookmark titles and map them to specific page numbers.
Download PDF
Save the document with updated clickable table-of-contents bookmarks.
Read Existing Outlines
Instantly inspect current bookmarks and destination page targets.
Custom Page Destinations
Link titles directly to chapter headings and specific pages.
Enhanced Reading Experience
Allows readers in Adobe Acrobat and Preview to jump between sections effortlessly.
Lightweight Processing
Updates bookmark tree structures without altering page graphics.
Frequently Asked Questions
Everything you need to know about formats, browser privacy, and file handling.
What are PDF bookmarks (outlines) and how do they help document navigation?▼
Bookmarks (also called outlines) are clickable hierarchical links in the PDF sidebar that let readers jump directly to specific chapters, headings, or figures without scrolling through hundreds of pages.
How do I create a multi-level, nested bookmark hierarchy for chapters and sections?▼
In our visual bookmark editor, you can add new bookmarks and drag them horizontally to create nested parent-child relationships (e.g., Chapter 1 > Section 1.1 > Subsection 1.1.2) for organized document navigation.
Can I set bookmarks to jump to specific zoom levels or page coordinates?▼
Yes. You can configure destination actions such as 'Fit Page', 'Fit Width', or target an exact X/Y coordinate on the page so the reader lands precisely on a chart or section heading.
How do I rename, reorder, or delete existing bookmarks in a PDF?▼
Click on any bookmark text to rename it, drag items up or down to reorder sections, or click the delete button to remove broken or redundant outline entries.
Why are bookmarks missing in my PDF, and can I generate them automatically?▼
Many basic PDF export tools omit bookmark trees. Our editor lets you build a clean outline from scratch or auto-detect heading structures based on font sizes across pages.
Do bookmarks work across all PDF viewers (Adobe Acrobat, Chrome, iOS Safari)?▼
Yes. Standard PDF bookmarks conform to ISO 32000 and display in the bookmark sidebar across Adobe Acrobat Reader, Google Chrome, Mozilla Firefox, Microsoft Edge, macOS Preview, and mobile PDF readers.
Will editing bookmarks affect the document's page numbers or text content?▼
No. Bookmarks exist in a separate outline dictionary and do not modify the text, page numbering, margins, or visual elements of the underlying pages.
Can I export or import bookmarks from a text or CSV file?▼
Yes. Power users can export the current bookmark structure as an indented JSON or text file, edit it in their favorite text editor, and import it back into the PDF.
Can I edit bookmarks on scanned PDFs without OCR?▼
Yes. Even if a scanned PDF has no selectable text, you can manually create bookmarks linking to any page number so readers can navigate the scanned book easily.
Does bookmark editing require re-saving or recompressing the entire PDF?▼
Our engine performs surgical updates to the PDF catalog and outline tree without recompressing images, ensuring the fastest processing and zero loss in visual quality.
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