On Fri, 6 Dec 2019 21:47:48 -0500, "Mayayana"
wrote:

"Peter Jason" wrote

|I have a Samsung / Android smartphone.
|
| Is there any app to automatically & permantely burn the Date/Time on
| to the photo, like in the old film days?
|

If you're taking JPGs the date is probably already there.
Open a photo in IrfanView and check the image properties
to find out if there's EXIF data. But there's no such thing
as permanent. EXIF data is just optional data added to a
JPG header. Personally I usually strip it out for privacy if
I do any editing and/or use an image online.

You could theoretically use a system to embed data in
pixels, but even then it would be lost if the image were
opened and resaved. The image is just a bitmap that's
compressed. In other words, it contains a grid of pixel
color values. That's all there is in a raster image. The
rest is expendable and depends on the image format as
well as software.

I found a camera that seems to do it...
https://postimg.cc/cvX6jTMF

(Sanyo VPC-E10EX)