Bookmark PDF
Add bookmarks to PDF files to build a clickable, nested outline for jumping to any chapter, with no upload.
Processed on your device, not uploaded.
How to Add Bookmarks to a PDF
- 1
Select Your PDF
Existing bookmarks load right away, ready to edit.
- 2
Tap a Chapter Heading
Its title and page fill in, or press Add to type one.
- 3
Set Page and Parent
Parent makes an item a subsection; then press Save.
- 4
Save and Download
Press Save Bookmarks, then Download PDF.
Bookmark PDF Features
Tap a Heading to Bookmark It
The title and page number fill in by themselves, with no retyping.
Nested Chapters and Sections
Drag sideways to change the level, or up and down to reorder.
Open Right at the Heading
Bookmarks made from a heading open the page exactly at that chapter.
Edit PDF Bookmarks in Place
Rename existing bookmarks, change their target page, or remove old ones.
Common Questions
Tap a chapter heading in the preview, set its page, then press Save Bookmarks. Readers jump there from the bookmarks panel.
No, bookmarks appear in the PDF reader's navigation panel, not as a printed contents page.
Yes, existing bookmarks load when the file opens. Deleting a parent also removes the subsections under it.
Yes, they're saved inside the PDF. Opening right at the heading line depends on the reader.
Yes, bookmarks are edited in your phone or computer browser, and the manuscript isn't sent to a server.
PDF Guides and Tips

How to Make a PDF Bigger: Page Size and File Size
How to make a PDF bigger: tell page size apart from file size, then resize pages to A4 or Letter...

How to Rename a PDF File on Android and iPhone
Learn how to rename a PDF file on your phone with the Android or iPhone file manager, or name it...

Why the Layout Breaks When Converting PDF to Word
Why does the layout break when converting PDF to Word? Learn the causes, from columns to fonts, and...
More UbahPDF Tools
Grayscale PDF
Convert PDFs to grayscale or B&W.
Rasterize PDF
Stop PDF text from being copied.
Repair PDF
Recover damaged PDF files.
Crop PDF
Cut PDF margins and white space.
Watermark PDF
Add a text or logo watermark.
Add Page Numbers
Number PDF pages automatically.
Edit PDF Metadata
Change or remove title and author.
Edit PDF
Write on PDF and add images.
Annotate PDF
Add notes and comments to a PDF.
Highlight PDF
Highlight key PDF text in any color.
Add Header and Footer
Add headers and footers to pages.
Resize PDF Pages
Change pages to A4, Letter, or F4.