OmniDocHow to remove bookmarks added to PDF: How to delete added bookmarks
Explain how to delete bookmarks that have been added to PDF, including deleting them one by one, clearing them all, and generating new files. It also explains the applicability, side effects, and verification methods after deletion of each method.
Key points of this article
- Bookmarks are just the navigation structure of PDF. Deleting bookmarks will not change the text content, but will affect the reader's chapter jump.
- When there are few bookmarks, you can control the deletion one by one in the bookmark panel. Before deleting, please confirm whether the sub-bookmarks will disappear together.
- The original file may come from someone else. Save it as a copy before deleting it. If an error occurs, you can reprocess it from the original file.
- If you just want to clear the whole file, you can create a new file without bookmarks, but you need to check whether the links, comments and text are complete.
- After deletion, check the number, level and jump target of the bookmarks one by one to confirm that there are no accidental deletions or wrong pointing.
Many people have encountered this situation: when they get a PDF from someone else, there is a long list of bookmarks in the left directory column; or they have added the wrong level before and want to remove them. People who search for "How to remove bookmarks from PDF" usually already know how to add bookmarks, but they just can't find the entrance when deleting them, or find that the sub-bookmarks are still there after deleting part of them.
This article talks about deleting existing bookmarks, which is the opposite operation to adding bookmarks. After reading, you can judge three things: whether to delete a few files or clear them all, whether to delete them directly in the reader or generate a new file without bookmarks; how to avoid accidentally deleting parents or children during the deletion process; and what method to use to confirm that the result is correct after deletion.
How to remove the bookmarks added by PDF? One sentence conclusion: If there are few bookmarks, delete them one by one in the bookmark panel. If there are many bookmarks or you just want to clear them all, consider generating a new file.
| your situation | Recommended practices | reason |
|---|---|---|
| Only a few redundant bookmarks | Open the bookmark panel, select them one by one and delete them. | The main text and other content will not be affected, and the scope of changes is controllable. |
| Bookmarks have multiple layers and many sub-bookmarks | Expand all levels first, confirm the removal of child bookmarks, and then delete the parent level. | When deleting the parent, the children may disappear. Check first to avoid accidental deletion. |
| The bookmark is from someone else's file and the original needs to be kept. | Save as a copy first, then delete on the copy | The original file remains unchanged, and you can roll back if you make an error. |
| I want the entire document to have no bookmarks at all | Generate new file without bookmarks and check content | New files usually do not have original bookmarks, but links, comments, etc. may be lost together. |
| The bookmark is correct, it just jumped to the wrong page | Modify the bookmark's jump target instead of deleting it | Keep the directory structure and only change the pointed page |
Before you start: Confirm these points first
Check first to see if there are any editing restrictions on the file. Some PDFs have passwords or permissions that only allow reading or printing. Bookmarks cannot usually be modified for such files. In this case, you should request editing authorization from the file provider rather than trying to work around the restrictions.
Then determine whether the bookmark is really redundant. Some bookmarks are chapter navigation designed by the original author for long documents. After deletion, it will become difficult for readers to find chapters, especially reports, papers or manuals with more than dozens of pages. Before deleting, take a look at your bookmarks to make sure they are of no use.
Confirm that the document is an official copy. If this PDF is to be sent to others, archived or submitted, it is recommended to save a copy before deleting it. If it gets damaged, you can start over from the original.
Confirm what the software in hand can do. Not all readers can edit bookmarks. Some only support viewing and jumping. The functions listed in the PDF editor of OmniDoc desktop client are to change paragraph text, signature, form filling, blackening, page manipulation, OCR, comparison and export. Bookmark management is not listed separately, so the following bookmark deletion is based on common methods. If you still need to sign or change words at the same time, you can go to download.omnidoc.top to download the desktop client to process these edits. The bookmark part still operates as follows.
Finally, make sure you want to delete the bookmark, not the table of contents page. Bookmarks are the internal navigation structure of PDF, and the table of contents page is the page printed in the text. The two are independent of each other. Deleting a bookmark will not delete the table of contents page, nor will deleting the table of contents page remove the bookmark.
Steps to delete bookmarks in the reader bookmark panel
- Open the PDF and find the bookmark panel. The bookmark panel is usually located on the left or sidebar, and the icons often look like a row of small bookmarks or lists. If you can't see it, you can open the sidebar in the view or navigation-related menu.
- Expand all levels. When bookmarks have a parent-child relationship, first expand all upper-level bookmarks to confirm how many there are in total to avoid missing bookmarks hidden in the lower level.
- Select the bookmarks you want to delete one by one. Click on the bookmark name to select it. Before selecting, take a look to see if there are any sub-bookmarks under it. If there are sub-bookmarks, decide whether to keep them.
- Delete this bookmark. Most readers support pressing the delete key, or you can right-click on the bookmark and select delete. After each item is deleted, see if the list changes as expected.
- Process sub-bookmarks. If the parent is deleted, the children may disappear together. When you want to keep the child, first move the child to another location or adjust the level, and then delete the parent; if the software does not support adjusting the level, just delete the children that are really unnecessary.
- When it needs to be cleared, delete items one by one starting from the top level. When there are many bookmarks, process them in order from top to bottom. After each group is deleted, the group will be closed. The remaining entries will be fewer and fewer, making it easier to check.
- Save as new file. Select Save As when saving, do not directly overwrite the original. This way the original file is still retained for easy comparison later.
- Close and then reopen to confirm the result. Reopen the new file and see if the bookmarks panel is empty, or only the entries you need to keep are left.
If the current software cannot edit bookmarks at all, you can change to a PDF editor that supports bookmark editing, or use the "Print to PDF" method to generate a new file. New files usually do not have the original bookmarks, but hyperlinks, comments and form fields may be lost together, so they must be compared item by item with the original after being generated. This method is suitable for clearing the entire bookmark, not just deleting one or two bookmarks.
Check each item after completion
After deleting or generating new files, it is recommended to check them one by one according to the table below. These checks only take a few minutes and prevent incorrect structures from being saved.
| Check items | How to see | What to do if there is a problem |
|---|---|---|
| Number of bookmarks | Open the bookmarks panel and count the remaining entries | If there are any omissions, go back to step 2 and re-launch the inspection step by step. |
| Hierarchical structure | See if the reserved bookmarks can still be nested correctly. | The child is mentioned at the same level as the parent, manually adjust the level, or re-add |
| Jump to the target | Click on a few reserved bookmarks to see if you can jump to the corresponding page | Page number dislocation usually means that the page has been added or deleted, and the bookmark needs to be reset. |
| Body and page count | Look at the number of pages and text to make sure there are no missing or wrong pages | If you use the method of generating a new file, check whether the text is selected and the picture is clear. |
| Links and comments | Check to see if the original hyperlinks and comments are still there | Copy back from the original when lost, or continue to use the original |
| Text layer | If the file is from a scan, try to select a paragraph of text | If it is not selected, it is a picture page, which can be processed with OCR and then checked. |
If you find a problem, don't rush to overwrite the original. Keep the current version, write down the questions, and then decide whether to change the bookmark or redo it in a different way.
# Core comparison
| Method | An appropriate situation | Main cost |
|---|---|---|
| Delete bookmarks one by one | There are only a few extra bookmarks and other structures need to be retained. | Bookmarks take a long time and need to be confirmed step by step. |
| Save after clearing all bookmarks | The bookmark structure is useless. I just want a clean document. | It is not easy to see if the deletion is wrong. It needs to be checked afterwards. |
| Generate a new file without bookmarks | The current software cannot edit bookmarks, or needs to be redone as a whole | Hyperlinks, annotations, forms, etc. may be lost and need to be checked item by item |
# frequently asked questions (FAQ)
1. Does deleting a bookmark affect the body of PDF?
No, I won't. The bookmark is just a navigation structure, and deleting it does not change the content of the page. However, if you use the method of generating a new file, you need to check the completeness of the text, links, and comments.
2. Why can't I delete the bookmark and press the button without responding?
There are two common reasons: the file has editing restrictions, or the current reader only supports viewing bookmarks. When you encounter restrictions, you should apply for editing authorization from the file provider; if the software does not support editing, change to a PDF editor that can edit bookmarks.
3. Only want to delete a child bookmark, does the parent want to move?
I don't need it. The selected neutron bookmark can be deleted separately, and the parent remains the same. It is only when you plan to delete the parent that you need to confirm the departure or retention of the child first.
4. Can it be restored after deletion?
You can undo the operation before saving. After saving, if you save it as a new file, the original file is still there and can be reprocessed from the original. Therefore, it is recommended to save a copy before each operation.
5. After you delete the bookmark, will the catalog page disappear together?
No, I won't. Catalog pages are printed pages in the body, and bookmarks are the navigation structure within PDF. The two are independent of each other, deleting the bookmark does not affect the catalog page, and deleting the catalog page will not automatically remove the bookmark.
# Summary
How to remove the bookmarks added by PDF, the key is to distinguish between deleting several items or emptying them as a whole. Can be deleted in the bookmarks panel one by one, and first save the copy to retain the original; when you need to completely empty, then consider generating a new file, while checking the integrity of links, comments and page numbers.
