i feel like some error might creep in when adjusting images and text. If the image is cropped by its origin (i.e. in photoshop or any image editor), there’s a surety that the image is like that only and remain like that throughout the editing of the document. By cropping I guess you’re saying to adjust the blue outer lines when autofit option is unchecked right? That merely hides the undesirable portion of image rather than actually cropping.
"change the pixel dimensions", I just crop the image, so the number of pixel per inch remains the same. I don't change the resolution. So what exactly do you mean by "You should expoct this sort of change if you change the pixel dimensions of the image. " ?
Pixel dimensions is the size, in pixels, of the image. Resolution is how large you wish to print those pixels by specifying how may will fill a defined space, ie. 300 pixels in the space of an inch. Resolution has nothing to do with number of pixels that the image contains. When you crop the image in Photoshop you are cutting off pixels and throwing them away -- changing the pixel dimensions for the image.
> By cropping I guess you’re saying to adjust the blue outer lines when autofit option is unchecked right? That merely hides the undesirable portion of image rather than actually cropping.
That's what I mean (except that I also mean you can move the image around inside the frame rather than adjusting the frame itself). There is no functional difference in your output if you crop in ID, and there are plenty of advantages, like the ability to reposition or show more of the image, and the size of the image doesn't change if you edit.