tealduck

Thank you both for your help with this. I used the method described by Pšenda so I didn't have to install more software.

" Good evening. Do you have to say a little more? Dimensions in pixels, resampling rate. If you do not print your images, 300 dpi resampling (for example) for the screen display is unnecessary. Try to choose a resampling equal to the resolution of your screen. In any case, it can be a cause. " So here is an example: Input file: JPEG, 1648x2152x24bits, 200dpi, size: 230,877 bytes - mostly black and white as it is just an old marriage license. Open, Rotate, Crop, Export JPEG, 2031x1617, Resample: Lanczos 3 Separable, Quality: 100%, Don't export layers = True, New Size: 1.43Mb I just don't understand why making an image smaller in pixel size should increase the file size. My best guess is that when the program decompresses the file and then I save it at 100% I don't get the compression that the original file contained. Which then begs the question how do I match the exact compression of the original file as I do not want to lose any more detail.

I have to say that I'm a little confused by this. I open a scanned JPEG file, crop the image and then export at the highest quality back to JPEG. I would think that the file size would go down but instead it increases sometimes by a factor of 10. What the heck am I doing wrong? Version: 1.6.2