How to batch set PDFs to open with page thumbnails displayed? Multi-file unified initial view tutorial

When opening a large number of PDF documents, only the body page is displayed. Users need to repeatedly click the thumbnail button in the sidebar, making it very inconvenient to find pages. This article explains how to use office software to batch modify the initial view of PDFs, setting multiple PDF files to display page thumbnails by default when opened. By adding files, choosing to display page thumbnails, setting the save location, and starting the process, you can reduce the repetitive operation of modifying document properties one by one. This is suitable for the centralized organization and delivery of multi-page PDFs such as contracts, reports, archives, and manuals.

When organizing contracts, project reports, product manuals, scanned archives, or electronic materials, you often encounter a seemingly simple but time-consuming problem: although PDF files can be opened normally, the reader only displays the body area by default, and the page thumbnail panel on the left does not automatically expand. If users want to quickly jump to a specific page, they must first manually open the sidebar and then switch to the thumbnail view. If there are only one or two files, this operation is not complicated; but when there are dozens or even hundreds of PDFs in a folder, opening, modifying, and saving the initial view one by one creates a large amount of repetitive work.

This article addresses exactly the issue of batch-setting PDFs to display thumbnails when opened. With the help of office software designed for batch file processing such as HeSoft Doc Batch Tool , you can import multiple PDFs at once and uniformly modify their initial views, so that the documents directly display page thumbnails after being opened in supported PDF readers. The entire process does not require entering document properties file by file, making it suitable for standardized organization of large numbers of PDFs.

1. Which scenarios are suitable for batch-setting the PDF initial view

Page thumbnails can display the content of each PDF page in the form of small images. For files with many pages, this is more intuitive than simply entering a page number, and users can quickly identify the target page based on the cover, table of contents, tables, images, or layout. Therefore, batch-setting PDFs to display thumbnails by default is especially suitable for the following scenarios.

• Contracts and bidding materials:Contract body text, attachments, and signature pages are usually distributed in different locations. Displaying page thumbnails after opening allows faster location of key content.
• Audit reports and project reports:Reports may contain a table of contents, body text, charts, and appendices. The thumbnail panel can help readers grasp the document structure.
• Scanned archives:PDFs generated from scanning often lack bookmarks, so page thumbnails become an important navigation method.
• Product manuals and training materials:Users can preview the page layout to quickly find operation diagrams, parameter tables, or specific chapters.
• Document delivery and archiving:Before batch-delivering PDFs to clients, colleagues, or archive departments, unifying the initial view settings can reduce inconsistencies in how different files are opened.

It should be noted that this processing modifies the PDF's opening view preference, and the core goal is to make the reader prioritize displaying page thumbnails when opening the document. It does not convert PDF pages into JPG or PNG images, nor does it merge multiple PDFs into one file.

2. Effect preview: What is the difference before and after processing

1. Before processing: Only the body page is displayed after opening the PDF

Below is an example before processing. After the PDF reader opens the document, the main area displays continuous pages, but the page thumbnail navigation bar is not expanded. Readers can only scroll through pages, enter page numbers, or click the sidebar button in the reader themselves.

For short documents of fewer than ten pages, this display method may have little impact; however, when faced with reports of dozens or hundreds of pages, the lack of thumbnails significantly increases the cost of locating pages. Especially when a file has no table of contents or bookmarks, it is difficult for readers to quickly determine what content a certain page contains.

2. After processing: Page thumbnails are displayed directly when opened

After batch setting is completed, opening the file in a reader that supports reading PDF initial view preferences will directly show the page thumbnail list on the left. The body text is still displayed normally, and you can click any thumbnail to jump to the corresponding page.

From the processed result, it can be seen that thumbnails are arranged by page number, and the cover, table of contents, body text, and chart pages can all be previewed intuitively. For longer PDFs, this opening method is more conducive to browsing, review, and presentation. The actual interface layout may vary depending on the PDF reader, but the setting goal is the same, namely to make page thumbnails serve as the navigation panel when the document is opened.

3. Operation steps: Batch-enable thumbnails when multiple PDFs are opened

Step 1: Enter the function for setting the PDF initial view

Open HeSoft Doc Batch Tool , enter "PDF Tools" in the tool category on the left, and then find "Set PDF Initial View" in the function list. The interface prompt indicates that this function is used to batch-set the navigation panel, page display mode, and default zoom ratio when PDF files are opened.

This task only requires uniformly controlling the navigation panel displayed when opening, so the subsequent focus is on setting the "Show on Open" option. The advantage of choosing this dedicated function is that files can be imported centrally according to the task process, without the need to look for document properties one by one in the reader.

Step 2: Add the PDF files to be processed

After entering the function page, the first stage is "Select records to be processed". If the number of files is small, you can click "Add Files" and select the corresponding PDFs; if the documents to be processed are centrally stored in the same directory, you can use "Import Files from Folder" to reduce repeated selections.

After the files are successfully added, the list will display information such as name, path, extension, creation time, and modification time. In the screenshot, four records are added at once: 1.pdf, 2.pdf, 3.pdf, and 4.pdf, which shows that the software can batch-process multiple PDFs in the same task. Before formally proceeding to the next step, it is recommended to complete the following checks:

1. Confirm that all files in the list are the PDFs for which the initial view needs to be set this time.
2. Use the path column to determine whether documents with the same name but located in other folders were selected by mistake.
3. If files that do not need processing were added, use the delete action on the right side of the corresponding record to remove them from the task.
4. Confirm that the number of records matches expectations, and then click "Next" at the bottom.

The delete action here targets the current pending list and should not be understood as deleting the source files on disk. To avoid misoperation, you should still check the file list before starting a batch task and keep backups of important materials.

Step 3: Enable Show on Open and select page thumbnails

After entering "Set Processing Options", turn on the "Show on Open" switch. Once enabled, the interface provides three options: "Do not show sidebar", "Show bookmarks", and "Show page thumbnails". Select "Show page thumbnails" to set the opening navigation mode of this batch task to the thumbnail panel.

On this page, you can also see two independent setting areas: "Page display mode" and "Default zoom mode". Since the goal of this article is only to batch-enable thumbnails by default when PDFs are opened, there is no need to additionally enable these two items just to complete the task. Keeping them disabled can avoid unintentionally changing the original document's page layout or zoom preference. After completing the settings, click "Next".

Step 4: Set the save location

According to the prompt at the top of the process, the next stage is "Set save location". It is recommended to give priority to saving the processed files to a separate new folder, such as "Thumbnails Set" or "PDF Initial View Processing Results". This makes it easier to compare the processing effect and also prevents source files and result files from being mixed together.

If the software provides options related to overwriting source files, you should decide whether to use them only after confirming the backup and output rules. For important files such as contracts, financial materials, and formal archives, a safer approach is to output copies first and replace the original files only after verification.

Step 5: Start batch processing and spot-check the results

After entering the "Start Processing" stage in the process, start the task and wait for completion. During batch processing, do not move, rename, or delete the source files being read, and also ensure that the output directory has sufficient space and normal write permissions.

After processing is complete, it is recommended to randomly open several PDFs from the result directory and focus on confirming three points: whether the files can be opened normally, whether page thumbnails are automatically displayed on the left, and whether the page count and body content are consistent with those before processing. When spot-checking, it is best to use the PDF reader in the actual delivery environment so as to judge the final display effect.

4. What efficiency advantages does batch processing have over setting them one by one

Manually modifying a single PDF usually requires opening the file, entering properties or view settings, selecting the navigation panel, saving, and closing it. Even if each file takes only one minute, processing one hundred files still requires a long time, and omissions are likely to occur along the way. After creating a batch task once using office software, the same setting can be applied to the entire file list, and the operator only needs to focus on checking the input, parameters, and output results.

Batch processing can also improve the standardization of materials. When operating file by file, some files may be set to thumbnails, some may be mistakenly set to bookmarks, and others may not be saved at all; a unified task helps keep the opening experience consistent for the same batch of delivered files. This consistency is especially important for archive organization, client delivery, and internal team document libraries.

5. Common questions and precautions

1. Why are thumbnails not displayed after processing

Different PDF readers may vary in their degree of support for document initial view preferences, and some readers may even prioritize the user's own interface settings or the previous reading state. In such cases, close the file and reopen it first, and then verify with a common desktop PDF reader. Do not judge the processing as failed based solely on the performance of a browser's built-in previewer.

2. Will setting thumbnails change the PDF content

This task targets the navigation view when the document is opened, and is not equivalent to editing body text, deleting pages, or reformatting. However, for any batch operation that writes document properties, it is recommended to back up important source files first and spot-check the page count, text, images, and signature display of the results.

3. Can zoom and page layout be modified at the same time

The operation interface does provide setting areas for "Page display mode" and "Default zoom mode". However, if the current requirement is only to display page thumbnails when opening, it is recommended to enable only the necessary options. Later, when there is indeed a need to unify single-page view, continuous-page view, or zoom ratio, set and test them separately according to the actual delivery standards.

4. Can encrypted PDFs be processed normally

If a PDF is restricted by passwords, permissions, or security policies, the software may be unable to write initial view information. Before processing, confirm that you have legitimate operating permissions, and test on a small number of samples first. For files with digital signatures or files whose signature validity needs to be maintained, modifications should also be made cautiously and the originals preserved.

5. Do all files need to be checked after a batch task is completed

When the number of files is small, they can be checked one by one; when the number is large, spot-checking can be used, including PDFs from different sources, with different page counts, and with different layouts. If the documents are used for formal archiving or external delivery, it is recommended to increase the sampling ratio and keep processing logs or result lists.

6. Summary

To batch-set many PDFs so that thumbnails are displayed by default when opened, you can enter "PDF Tools" in HeSoft Doc Batch Tool , select "Set PDF Initial View", add files in batch, then enable "Show on Open" and select "Show page thumbnails", and finally set the save location and start processing. Compared with opening PDFs one by one to modify settings, this batch processing method can significantly reduce repetitive clicking while giving the same batch of contracts, reports, archives, and manuals a more unified reading entry point.

If you are preparing to organize a batch of multi-page PDFs, it is recommended to first select two or three files for testing, confirm that the target reader can display thumbnails as expected, and then import the entire folder for batch processing. After completion, keep the source files and spot-check the results, so that you can improve efficiency while reducing the risk of misoperation.