Bookmark panel is sometimes stuck at full width

[davidl56516759]

Panel at right side, which includes bookmarks and page previews, is sometimes stuck at full width and cannot be made smaller by dragging handle.

[Tariq Ahmad Dar · Accepted solution]

Hi @davidl56516759, 

Sorry for the troubled experience, and thanks for reaching out. The issue isn't reproducible at our end. 

Could you please check if the issue is still reproducible if you open a new PDF document? Also, try repairing Acrobat. To repair, launch Acrobat > Help> Repair installation.

Please ensure your copy of Adobe Acrobat is updated. To check for any pending updates, launch Acrobat > Help > Check For Updates.

Let us know how it works at your end.
 

~Tariq

[davidl56516759]

Repaired and noted that, as you pointed out, probably due to opening PDFs that have been modified in other editors.

[AnandSri]

Hi @david!

I hope you are doing well, and thanks for sharing the additional details. 

When a PDF was edited in another application, it can carry embedded viewer preferences or document-level JavaScript that force the Navigation Pane (bookmarks/thumbnail panel) to open at a specific width—and Acrobat dutifully honors those settings, which is why you can’t drag it smaller. 

You may want to recreate the PDF files. Export to a “clean” PDF. Menu → Save as Other → Optimized PDF. In the PDF Optimizer dialog, uncheck “Include User Data” or “Discard Document Information and Metadata”. Click OK, save, and reopen.

Strip embedded viewer prefs & JavaScript via Preflight

• Open the PDF in Acrobat Pro.
• Go to All Tools → Print Production → Preflight.
• In the Preflight dialog, search for “Remove JavaScript” under the Fixups section.
• Select “Remove all document JavaScripts”.
• Next, search for “Remove Viewer Preferences” or manually add a second fixup:
• Under Fixups → Document, choose “Remove embedded viewer preferences”.
• Click Analyze and Fix, save the PDF, and reopen it. See this article for more details: https://adobe.ly/4dzY1wL

I hope this helps.

Thanks,

Anand Sri.