app.pdfPlacePreferences.pdfCrop = PDFCrop.CROP_TRIM;
What I was looking for is bounding box measurements.
I kind of went around the issue and placed the file first and then resized indd file afterwords based on the file size. It works in an awkward way, but that's all that counts.
I am doing this right now, and I as well have done the same: place the pdf and fit a frame to it- to get geometric bounds.
It is work around, and it makes it happened, but to place heavy pdf, just to find out the size, is not the most elegant solution, so I am still hoping for better approach.