Question

How to find out the resolution of the source image?

Answer

• For source images in raster format, please check the properties:
  

  ImageDocument.SourceImageXResolution 
  ImageDocument.SourceImageYResolution 

• For source images in vector format (such as vector PDF) the resolution will be detected automatically and the auto-detected values will be returned.
• For source images, which contains multiple resolution pictures (for example, the PDF with build-in images in 72 dpi and 200 dpi) the resolution will be detected automatically