Can you include .3MF to the list of re-compressible formats? Its structure is similar to MS Office 2007 documents and Open Document Format. It is a ZIP Deflate archive with XML data and some JPG, and/or PNG pictures inside. Otherwise, if I try to compress .3MF it bearly makes it smaller unless I recompress .3MF to the Store setting then it makes it a lot smaller.
Wish they all would move to 7zip ZSTD in the first place so that the optimized file size with FileOptimizer would be 50% of the ZIP Deflate version. And there would be no extra compression needed :)
I noticed that the option to add the optimize archive function to the context menu is missing on Windows 10.
Opening each archive with the interface in order to click it becomes tedious with many files.
Same for others functions like Remove Archive Encryption
PIMPLE (Fast PAQ) Compression
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What do you thinking about add PIMPLE compression into your PowerArchiver?
PIMPLE is a fast PAQ-like encoder - faster than PAQ6 in fastest mode and compresses better than PAQ6 in this mode.
Also, special for you, I can provide source code of PIMPLE.
Note on PIMPLE archiver - currently it on deveopment and current version is just beta-test version. “.pim" file format in development too - so, maybe future version can be backward incompatible with current ".pim” files. But it’s engine (PIMPLE 1.0 testbed) seems to be stable.
More info at: http://www.encode.ru/pimple/index.htm