Try exporting to a high quality PDF, then open that and convert to PNG in Photoshop.
InDesign CC still the same bug....
Why is there still no bugfix?
Why can't InDesign not just export pixelperfect Pictures in 72ppi? Why do i have to export my PNGs in 150ppi and then open it in PS to convert it in 72ppi?
thanks, i reported the bug
In my experience with that topic (including transparency), only PhotoShop is reliable to render pixel-perfect images out of InDesign files (with the help of the intermidiate PDF exported). This did not change with CC…
InDesign is often not aware what's inside a shape or not. Consider tables inside a text frame, applied effects like drop shadows etc.pp. that would be exported to PNG (or even JPEG).
Only AFTER a PDF is rendered in PhotoShop (with transparency) you could crop the rendered image to the painting pixels to get the minimum area for your image.