Zoey, yes, just tried it it converted a 24 BPP PNG icon 8.2KBytes with transparency to a 4 BPP PNG icon 2.2KBytes with transparency reducing its size by removing redundant unused bits per pixel... I was expecting something more sophisticated but it worked in THIS case.
TK

Zoey, yes

Foolded,
Because it isn't. At least the zip file includes setup.exe to install it on your computer (though I have not done that yet)

rww, Well, when you do install it, you'll see a button at the bottom to "UPLOAD FILE". So, it MOST DEFINATELY is Web Based!!

rww, I have installed, tested and packet sniffed whilst "UPLOAD FILE" operation is in progress and changing parameters and it is an offline stand alone desktop program. The confusion is their own fault for using the text "UPLOAD FILE" when what they really mean is "OPEN FILE" There is no uploading going on as the file stays on the machine it started on and is only opened and read into the program and NO upload to anywhere else takes place.

It is entirely possible the installer could have installed a GUI to a cloud application like many AI engine based desktop programs operate but this is not that.

I note that I see no "Activation" button and my installation describes itself as unlimited so it appears it picked up a previous giveaways license data and used that even though it was uninstalled a long time ago.
TK

TK, Your findings may be correct, but I find it odd to have the following items in the Change Log (which hasn't been updated for 6 years!):

v1.0.2.9 - October 20 2017
- We have removed the "Check your Internet connection" error message.

v1.0.2.8 - October 13 2017
- Reduced the number of connections to the Internet.

It sounds like with the references to the internet that it does (or did) perform it's conversion process that way. They could have removed the connections entirely but they don't specify that.

William Randall, I saw that too, the only internet connection I found was one to check for latest version and the response for the latest version was 1.0.0.1 suggesting they never completed the back end update repository since the real current version is 1.0.3.1 from 2017. Not having the earlier builds I suspect they were debugging telemetry of some sort which were stripped out of the latter public releases. reducing from 2 to 1 is reducing, leaving that one to check for latest current version is a legitimate internet connection as is removing the error reporting of "Check your Internet connection" with overly verbose debugging instead of silently ignoring the error in a non-debug build. Assuming from a non-verbose change log without actually testing what is going on NOW leads to mistakes.
TK

Peter,
try to make the program window smaller,
it is at the bottom line.

GOTD team

Thanks, found it

rww, I haven't looked into the way this particular software works. However, coming from a video production/ editing background, I believe that it is most likely saving space with color compression.
There's a lot of information out there you can read on this subject, but short story is that it can eliminate bits of color information by allowing pixels to share color information with pixels beside them.

jimbo jensen,
Key activation button below accepts the code and turns the program into Pro.

GOTD team

jimbo jensen, the use of term PRO is a misnomer in this case it is actually called "unlimited" not "pro" on their website it is known by both terms interchangeably but in the program if its activated it is definitely called "unlimited" and not "pro"
TK

Joerg, Read the readme.txt in the unpacked folder