Use javascript to automate rotating a background image in Adobe Acrobat 2017?

[catherinew78546173]

Hi all.  I have Adobe Acrobat 2017 and I am new to running actions but trying to learn.  I have a pdf where the background image is sourced from a file and I need to rotate the image 270 degrees for the landscape pages only.  I'd like to use javascript to automate this process.  I found code to step through the document and find the landscape pages, but I can't figure out how to reference and rotate the background image.  Can someone help? 

/* Finds all landscape pages in current document */

var LandscapePageCount = 0;

{

    for (PageIndex = 0; PageIndex <= this.numPages - 1; PageIndex++)

    {

        // check if this page is landscape or portrait

        var aRect = this.getPageBox("Media",PageIndex);

        var PageWidth = aRect[2] - aRect[0];

        var PageHeight = aRect[1] - aRect[3];

        if (PageHeight < PageWidth)  // Landscape page found

        {

            LandscapePageCount++;

            // NEED HELP HERE

        }

    }   

    app.alert("Total number of landscape pages found: " + LandscapePageCount, 3);

}

[Kanikas]

Moving to Installing, Updating, & Subscribing to Acrobat​

[Bernd Alheit]

How did you add the background image?

[catherinew78546173]

I added it manually (Edit PDF -> Background -> Add, Source = a file on my computer) and I have added it by creating an Action that does the same thing.  I add the same footer on every page of the pdf, but the landscape ones need to be rotated 270 degrees and I can't figure out how to change the location of the background image for just those pages.

[try67]

Not possible with a script.

[Bernd Alheit]

For the landspace pages you can use a rotated image.

[catherinew78546173]

Bernd Alheit, great idea and thank you!  But how do I automate the process of selecting the rotated image for landscape pages and the non rotated image for portrait pages?

[Bernd Alheit]

Info: With JavaScript you can add Watermarks, not Backgrounds.

[try67]

JS can't do that. It can only rotate objects like form fields or comments or entire pages.