Long reports and manuals are much easier to navigate with a clickable table of contents in the sidebar.
Upload the PDF to see what's already there — often nothing — then set the title, level and page number for each entry you want and download the file with a working outline.
By ShinobiTools Team · Last updated: August 2026
These are the file's own built-in outline, not a browser bookmark. Every PDF reader has a "Bookmarks" or "Outline" panel down the side — this tool edits exactly that list, the same table of contents the PDF format itself already carries, not anything specific to this site. Add, edit or remove entries and every PDF reader picks up the change immediately. Your file is only ever handled in memory here, never written to our disk.
Level controls indentation and nesting in the bookmarks panel, the same as heading levels in a document: level 1 is a top-level chapter, level 2 sits nested underneath it as a section, level 3 nests under that, and so on. A level-2 entry always belongs under the nearest level-1 entry above it — that's how PDF readers build the collapsible tree you see in the sidebar.
Upload the file and any existing entries are listed automatically, with nothing written to our disk. For a file that has none yet, press Add bookmark and fill in the title, level and page, the same way you would edit an existing entry.
Adding and removing use the same list: press Add bookmark for a new entry, or delete a row to remove that entry, then save. Removing is no separate step.
Just merged several files with Merge PDF and lost the table of contents in the process? That's expected — a merge drops every source file's bookmarks — so build a fresh one here once the pages are in their final order.
Most PDFs — especially ones exported from a word processor — already carry bookmarks. Upload the file and every existing entry is listed with its title, level and page number pre-filled, so you're editing what's there instead of starting over. A PDF with no table of contents yet just shows an empty list, which is normal, not an error.
The update is saved directly into the PDF's outline, so Acrobat, Preview and browser viewers all show it the next time the file opens, with nothing installed on your side.
Your PDF is processed entirely in memory on our own machine and handed back in the response — it is never written to our disk for this tool, and nothing is kept afterwards.
Each entry needs three things: a title, a level and the page number it jumps to. To bookmark a page inside a long report, add one entry for that page number; a bookmark page entry never changes the page itself, only the outline that points to it.
Once saved, clicking an entry in any reader's outline panel jumps straight to that page, whether the PDF came from a word processor or a scan.
To edit PDF bookmarks that are already there, change the title or page number in place and press Save. A PDF merge with bookmarks isn't automatic: a merge drops every source file's old entries, so add PDF bookmarks here once the pages of the combined PDF files are in their final order.
Combined several files into one and the old table of contents no longer matches the new page numbers? Merge PDF puts the pages together first — add fresh bookmarks here once the order is final. Want the document's headings kept as real structure instead of a jump-list built separately? PDF to Markdown turns them into markdown headings you can paste anywhere.
How to create PDF bookmarks for a report with chapters: open the PDF in a PDF viewer next to this page, note the page number where each chapter and section starts, then add one entry per heading here, level 1 for chapters and level 2 for sections under them. Page numbers are the file's own page count starting at 1, not the numbers printed on the pages.
They're the file's own table of contents: the same list you see in the "Bookmarks" or "Outline" panel down the side of Acrobat, Chrome, Edge or any other PDF reader. Click an entry and the reader jumps straight to that page.
Upload the PDF and any existing bookmarks are listed automatically. Edit a title or page number in place, use "Add bookmark" for a new entry, or remove the ones you don't want, then press Save bookmarks. That is how to add bookmarks to PDF files, and how to make bookmark in PDF entries uses the same button.
Upload the file; if there are no existing bookmarks, the list is simply empty. Press "Add bookmark", set the title, level and page number, and add as many entries as you need before pressing Save. How to create bookmarks in PDF documents of any length is the same one entry at a time, and how to create bookmark in PDF chapters is no different.
Yes. Set level 1 for a top-level chapter and level 2 or 3 for sections underneath it; PDF readers display these as a collapsible tree in the bookmarks panel.
Every reader. Bookmarks are a standard part of the PDF format itself, so once saved, Acrobat, Preview, browser PDF viewers and everything else show the same list.
Yes. Delete every row and press Save; an empty list is saved as no table of contents at all, the same as a PDF that never had one. Removing a single entry works the same way: remove the row, then save.
No. Bookmarks are stored in the file's outline structure, not on any page, so the text, images and layout of every page stay exactly as they were. Bookmarking a page never changes the page itself.
It's rejected with a clear message instead of being saved anyway, because a bookmark pointing at a missing page would just be a dead link.
Add one entry per page you want to reach: a title, a level and the page number it jumps to. That is how to bookmark a page in a manual of any length; to bookmark pages for each chapter, repeat the step and nest sections under their chapter.
Close to it: you can add, edit and remove entries, but there is no drag to reorder; retype a row instead. It is free, with no account and no watermark, like any editor on this site.
25 pages and 250 MB per file on the free tier, or 200 pages and 500 MB with a pass. There is no account, no watermark and no daily cap.
ShinobiTools · KvK 42147182 · info@shinobitools.com