Nadahar

The gpg plugin should probably be put in a Maven profile, so that it would only run if said profile was explicitly invoked. Example: ```powershell mvn package -Psign ```

I guess @drewnoakes will have to actually test if the signing is working as intended with this PR. It looks sound to me at a glance.

It should be noted that it's not uncommon for metadata to be wrong - which is part of the reason why both MediaInfo and FFmpeg analyzes/probes part of the stream...

It would be a shame make the library incompatible for all pre Java 8 projects for this. The lack of thread safety for these classes shouldn't be an argument, that...

Thread safety came up because I followed your link and tried to find the *reason* for the "recommendation" to avoid `java.util.Date` and `SimpleDateFormat`. I see such claims all the time,...

@payton > Note: Many files will not be identified yet as a result of the ID3 block If the above still applies, I wrote some code for skipping ID3v2 in...

What is certain is that the current ARW detection is wrong, see #217. Many of the RAW formats are in fact custom TIFF implementations, and will as such have the...

A reader implementation that doesn't have to read everything into memory would be a great improvement in my opinion :+1: Some images are really slow to parse.

@kwhopper I think that any large JPEG would do.

I just tested with a local merge of #216 and #225 on [my example image](https://github.com/drewnoakes/metadata-extractor/files/677842/ScreenShot.zip). Applying the filter: ```java new MetadataFilter() { @Override public boolean tagFilter(Directory directory, int tagType) {...