msangel

This plugin is good, but I it has missed two important things. First one - AGIF not supporting transparency. And second - during saving I cannot select 24 bit or 8bit GIF image I want to save. It defaults to 8bit, even if the source is 24bit. See example source file in attachment. ws_loader.agif

For keeping metadata is no difference is this raster or vector file. .pdn is workspace file. It already contain some metadata. I am talking, than it will be useful to keep user-defined metadata(texts, arrows), linked to some position on layer. This data is not a part of picture, but it need sometime to describe some detail on region, without affecting image. Like an comment to cell data in spreadsheet. Like a highlight text in pdf. It's not affect the original data - cell contend, pdf document, image. It's just describe it. Creating a hidden layer with this all stuff as picture is not so practical - it is not possible to copy text from there, change it simply, move, etc. And not so simply to describe detail for each layer.

subj. AFA .pdn is format for working project. Sometimes to some elements in workspace need to add extra metadata(ex.: font style and size, another example - in case of color with alpha - thectly color definition, in some cases - describe object relation.) All this stuff exist in adobe reader. All what need - copy functionality to Paint.NET.