Other PDF Issues

How to Keep the Page Thumbnails Pane Open in Acrobat

Algirdas JasaitisAlgirdas Jasaitis Nov 2, 2026 869 views

Question details

The user wants to configure Adobe Acrobat so the Page Thumbnails pane opens automatically when viewing PDF documents.

How to Keep the Page Thumbnails Pane Open in Acrobat
Product
Adobe Acrobat
Device & OS
not provided
Scenario
Viewing and navigating multi-page PDF files.
Observed behavior
The Page Thumbnails pane must be opened manually each time, and the pinning feature is missing in some classic software versions.
Before you start

Verify your current version of Adobe Acrobat, as the navigation pane pinning feature is only available in newer continuous releases and not in older classic editions.

Solution 1Recommended

Pin the Page Thumbnails Pane in Acrobat

Use the built-in pin or keep-open setting to force the thumbnails panel to stay visible.

Newer and continuous releases of Adobe Acrobat include an option to pin the left navigation pane so it stays open automatically for all documents you view.

1
Open a PDF Document

Launch Adobe Acrobat and open any standard PDF file.

2
Expand the Thumbnails Pane

Click the 'Page Thumbnails' icon located on the left-hand navigation pane to expand it.

3
Access Pane Options

Right-click the expanded pane or click its options menu (usually depicted as a gear or drop-down icon).

4
Pin the Pane

Select the 'Pin' or 'Keep Open' option to set this as your default viewing behavior for future documents.

Pin the Page Thumbnails Pane in Acrobat
Version Limitations: This option is not available in older classic versions, such as the Adobe Acrobat Pro DC 2015 release.
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Frequently Asked Questions

Why is the option to pin the Page Thumbnails pane missing in my Acrobat?

Some classic versions of Adobe Acrobat, such as the Acrobat Pro DC 2015 release, do not include the feature to pin the navigation pane globally. You will need to upgrade to a newer continuous release to access this application-wide setting.

Can I make the bookmarks panel open automatically instead of thumbnails?

Yes. Similar to the thumbnails pane, you can open the Bookmarks panel on the left side, click the options menu, and select the pin option. Alternatively, you can set a specific document's Initial View properties to 'Bookmarks Panel and Page'.

Does saving the Initial View properties affect how others see the PDF?

Yes, modifying the Initial View settings in the Document Properties and saving the file will force the PDF to open with the specified layout (like expanding the Thumbnails pane) for anyone who views it in a standard, compliant PDF reader.