I would like Adobe to add a way to control the default thumbnail display size in the Combine Files workspace.

I regularly use Combine Files to organize and combine 600+ PDF documents into multiple content-specific groups. Each document contains important information, including dates, that I need to visually review before determining its position and arranging the documents chronologically.

I need to use Thumbnail View because List View does not allow me to see the document content and dates.

Currently, the Combine Files workspace opens with very small thumbnails. I can enlarge them using the + magnifying glass, but my preferred viewing size requires approximately 22 clicks of the + button.

Because I am creating multiple groups of documents, I have to repeat these approximately 22 clicks every time I start a new Combine Files session. This is unnecessarily time-consuming when processing hundreds of documents.

Requested improvements

Please consider adding any one or all of the following options:

1. Remember the last-used zoom level
   Have Acrobat remember the thumbnail size selected by the user and use that size the next time Combine Files is opened.

2. Allow a default thumbnail size to be specified
   Add a preference allowing the user to choose their preferred default thumbnail size for the Combine Files workspace.

3. Allow users to enter a specific zoom percentage
   Add a numerical zoom field where the user can enter a specific percentage, such as 75%, rather than having to repeatedly click the +/− buttons.

For example:

Zoom: [ 75% ]

This would provide much more precise control and would eliminate the need to click the + button repeatedly.

Why this matters

This would be a relatively small interface improvement that could have a significant productivity benefit for users who work with large numbers of documents.

For users processing hundreds of PDFs, having to click the zoom control dozens of times for each separate Combine Files session is repetitive and inefficient.

A persistent zoom setting or numerical zoom field would make the Combine Files workflow substantially faster and more user-friendly.

Thank you for considering this feature for a future Acrobat update.