aPhoto is an Intuitive and Portable Program that Helps You Create a Text or Image Watermark
Install
No need to install, just decompress your downloaded zip/tar package.
If what you used is Ubuntu and its version is Saucy (13.10), Raring (13.04), Quantal (12.10) or Precise (12.04),
You can search and install aPhoto at USC(Ubuntu Software Center).
Or you can also install it on the command line:
sudo apt-get update sudo apt-get install aphoto
And Via Snap Store:
sudo snap install aphoto --edgeThe details refer to snapcraft.io/aphoto