any downside to high resolution (pixel density) of the picture? (other than file size).

Hi Mike;

I did quite a few consulting stints at Passport Canada before joining Appeon. The Passport PB App captures your passport photo by directly interacting with either a scanner or a camera at the counter. The image has to be a certain minimum DPI - however the camera and scanner devices can record an image in very high resolution. The key we found was to pick a resolution that met minimum printing density required for the Passport without burdening the ASE DB size where the images were stored as Blobs. The happy middle ground that we found was a JPEG image format using a 25% (max) compression to save DB space yet maintain a good image quality for the Passport Book itself (all done via PB code).

So my suggestion would be to try different image DPI's and file formats that best work for your App(s) that meet your clarity and image size needs.

HTH

Regards ... Chris

File size for sure, but also it will use more memory, the screen might render slower, and take longer to print.