How to batch delete bookmarks in multiple PDF files while keeping the main content unchanged

Many PDF files need to have their left bookmark panel cleaned up before organizing, archiving, or sending them out, in order to avoid exposing the document structure, historical chapter information, or unnecessary navigation items. This article explains how to use the "Delete Bookmarks in PDF" feature in HeSoft Doc Batch Tool to import multiple PDF files at once and batch remove all bookmarks from the bookmark panel while keeping the PDF body page content unchanged. It is suitable for batch normalization of contracts, reports, document packages, scanned files, and other documents.

In daily office work, PDF files often contain bookmark navigation. Bookmarks themselves can help readers quickly jump to sections, but in some scenarios, they may also become content that needs to be cleaned up. For example, after multiple project reports are merged and organized, the old table of contents may still remain on the left side; materials sent externally may not be expected to show the internal chapter structure; PDFs downloaded from the internet or generated by third parties may contain a large number of irrelevant bookmarks; and during batch archiving, it may be desirable for all PDF files to maintain a unified and concise opening appearance.

If only one PDF is processed, manually deleting bookmarks is still acceptable. However, when the number of files reaches dozens or even hundreds, opening each PDF one by one, expanding bookmarks, deleting the table of contents, and saving the file is not only time-consuming but also prone to missed processing. The problem this article aims to solve is exactly this: using the office software " HeSoft Doc Batch Tool ", through batch processing, delete the bookmark navigation in many PDF files at once, thereby improving file organization efficiency.

Applicable scenarios: when is it necessary to batch delete PDF bookmarks

"Deleting bookmarks in PDF" is suitable for scenarios where you want to clean up the bookmark navigation on the left side of a PDF without changing the content of the body pages. Common situations include:

1. Batch archiving PDF documents: When archiving enterprise materials, project files, audit reports, and technical documents, it is desirable for all files to have a consistent format and to remove unnecessary bookmark navigation.
2. Organizing information before sending PDFs externally: Some bookmark names may contain internal chapter names, workflow names, or old version titles. Deleting bookmarks before sending can reduce unnecessary information exposure.
3. Processing PDFs generated by third parties: PDFs obtained from conversion tools, typesetting software, or download channels may automatically generate many complex hierarchical bookmarks, affecting the cleanliness of the reading interface.
4. Batch cleaning report directory structures: Some PDFs already have a table of contents page in the body, and the bookmark navigation on the left is redundant navigation. After deletion, the reading interface becomes cleaner.
5. Unifying the opening appearance of a large number of PDFs: In the same batch of materials, some files have bookmarks and some do not. Batch deletion can make all files present a consistent state.

It should be noted that the "bookmarks" mentioned in this article refer to the bookmark navigation panel on the left side of a PDF reader, not the table of contents text on body pages. After deleting bookmarks, the page content of the PDF itself will not be automatically deleted because the bookmarks were removed.

Effect preview: before processing, there are many bookmarks on the left side of the PDF

Before processing, in the bookmark panel on the left side of the PDF reader, a multi-level directory structure can be seen, such as Cover, Results in Brief, Report, Table of Contents, Acronyms, Introduction, and so on. The area pointed to by the red arrow is the bookmark navigation in the PDF file. For a single file, these bookmarks may be useful, but when the file needs to be published externally, archived uniformly, or have its navigation structure hidden, they need to be deleted in batches.

From the preview image, it can be seen that the body pages are still the content pages of the PDF, while the bookmarks on the left are additional navigation data. The goal of this article is not to delete PDF pages, nor to delete the table of contents text in the body, but to delete all bookmark items in the left panel.

Effect preview: after processing, the PDF bookmark panel is empty

After processing is complete, when the PDF file is opened again, it can be seen that the original directory items are no longer present in the left bookmark panel. The body pages of the PDF still display normally, and the page numbers, content layout, and body table of contents have not disappeared because the bookmarks were deleted. The position pointed to by the red arrow shows that the original bookmark area has been cleared.

This is the main effect after batch deleting PDF bookmarks: removing navigation bookmarks while preserving page content. For office scenarios that require batch standardization of PDF files, this kind of processing can significantly reduce repetitive operations.

Operation step 1: enter the PDF tool and select Delete bookmarks in PDF

After opening " HeSoft Doc Batch Tool ", select "PDF Tools" in the function categories on the left. This software is positioned as a batch document processing tool for office work, and its interface provides different functions according to file type and processing purpose, making it suitable for batch processing PDF, Word, Excel, images, and other files, thereby reducing repetitive operations.

In the PDF tool function list, find "33. Delete bookmarks in PDF". In the screenshot, the description on that function card is "Batch delete all bookmarks in PDF files", which is consistent with the goal of this article. After clicking that function card, you will enter the batch bookmark deletion processing page.

The purpose of this step is to enter the correct function module from among the many PDF processing functions. The expected result is to open the "Delete bookmarks in PDF" page, after which PDF files to be processed can be added.

Operation step 2: add the PDF files whose bookmarks need to be deleted

After entering the "Delete bookmarks in PDF" page, the top of the interface shows the current function name and provides buttons such as "Add Files", "Import Files from Folder", "Clear", and "More". The page flow is divided into three steps: select the records to be processed, set the save location, and start processing.

If only a few specified files need to be processed, you can click "Add Files" and select the PDFs one by one. If you need to process multiple PDFs in a folder at once, you can use "Import Files from Folder". From the screenshot, it can be seen that four PDF files have already been imported, with file names 1.pdf, 2.pdf, 3.pdf, and 4.pdf, all located in the D:\test directory.

After the files are imported, the list will display information such as sequence number, name, path, extension, creation time, and modification time. Users can confirm through this information whether the correct files have been selected. The "Actions" column on the right provides a delete entry for a single record. If a certain PDF does not need to be processed, it can be removed from the list; if the import is incorrect, the "Clear" button at the top can also be used to select again.

The purpose of this step is to add all PDF files whose bookmarks need to be deleted into the task list. The expected result is that the files to be processed appear in the list, and the number of records is shown at the bottom, such as "Record count: 4" in the screenshot.

Operation step 3: confirm the file list and proceed to the next step

Before starting batch processing, it is recommended to check the file list first. Focus on confirming three items: first, whether the extension is pdf; second, whether the path is the directory to be processed this time; third, whether the number of files matches expectations. Because this function will delete all bookmarks in the PDF, it is recommended not to mix files whose bookmarks do not need to be cleaned into the list.

After confirmation, click "Next" at the bottom of the page. According to the interface flow, the next step is "Set save location". The save location setting is very important because it determines where the processed PDF files will be output. To make it easier to verify the results, it is recommended to choose an output location that is easy to identify and avoid confusion with the original files. If the software prompts about overwriting or saving as a copy, please make a careful choice according to actual office requirements.

The purpose of this step is to move from the file selection stage to the output setting stage. The expected result is that the software enters "Set save location", and the user can continue to specify how the processed files should be saved.

Operation step 4: set the save location and start processing

After completing the save location setting, follow the page flow to enter "Start Processing". This flow corresponds to step 3 at the top of the interface. Since the object processed by this function is bookmark data, it usually does not require page-by-page editing or manually expanding the bookmark tree of each PDF. The software will batch execute the bookmark deletion operation on the PDF files in the list.

After processing is complete, you can open the PDF files in the output directory to check them. The checking method is very simple: open the file with a common PDF reader, click the bookmark icon on the left, and see whether the bookmark panel is empty. Referring to the before and after effect images, before processing there are multiple levels of bookmarks on the left, while after processing the bookmark list on the left is empty, and the body pages still display normally.

The purpose of this step is to let the software automatically complete the batch deletion of PDF bookmarks. The expected result is to obtain a batch of PDF files whose bookmarks have been cleaned, reducing the time spent manually modifying them one by one.

Frequently asked questions and notes

1. Will deleting bookmarks delete the table of contents page in the body?
No. PDF bookmarks are navigation data on the left side of the reader, while the table of contents page in the body is part of the PDF page content. Deleting bookmarks usually does not delete text, images, or the table of contents page on the pages.

2. Can many PDFs be processed at once?
Yes. This function itself is designed for batch processing. You can add multiple PDFs to the list through "Add Files" or "Import Files from Folder" and then process them together.

3. Should the original files be backed up before processing?
Backup is recommended. Although deleting bookmarks usually does not affect the body content, once bookmarks are deleted, if the original files are not retained, it will not be convenient to restore the original navigation structure. For important materials, it is recommended to keep a copy of the original files first.

4. What happens if some PDFs have no bookmarks?
PDFs without bookmarks usually do not have bookmark content that can be deleted. Including PDFs without bookmarks in a batch task generally does not affect the processing of other files, but it is recommended to spot-check the results after processing.

5. Is this function suitable for deleting one specified bookmark?
From the function description in the screenshot, this function is used to "batch delete all bookmarks in PDF files". If you want to delete only one specific bookmark, you need to use a PDF editing method that supports fine-grained bookmark editing. What this article introduces is an efficiency-oriented processing method for batch clearing all bookmarks.

Summary: replace repeated manual deletion with batch processing

Batch deleting PDF bookmarks may seem like a small need, but when archiving, sending externally, or organizing a large number of files, it can take up a lot of manual time. Using the "Delete bookmarks in PDF" function of " HeSoft Doc Batch Tool ", the process of opening, deleting, and saving files one by one can be turned into a workflow of importing once, setting uniformly, and processing in batch.

If you have many PDF files whose left-side bookmark navigation needs to be cleaned up, you can follow the steps in this article: enter PDF Tools, select "Delete bookmarks in PDF", add files or import from a folder, confirm the list, set the save location, and start processing. After processing is complete, spot-check the bookmark panels of several PDFs to confirm the batch cleaning effect.