Use newly introduced library for this purpose as it processes application/postscript format also - Using PDF Rasterizer in AEM . This is available on 6.1, 6.2 and 6.3.Alternatively Imagemagick is tool which you can configure which processes EPS files the doc of which can be found under this section ...
If you are not on latest Service Pack and Cumulative Fix Pack on 6.1 we recommend one as we have done lot of improvements in this area specially in Touch - UI. You might want to review this - Adobe Experience Manager Help | Release Notes: AEM 6.1 Cumulative Fix Pack Thanks,Gaurav
Expiry is at author end and will add label of Expired on thumb letting users know this is something which should not be used at author end. For publish end this off time is recommended - Dam Assets Ontime and Offtime Behavior along with expiryThanks,Gaurav
Hope you have already reviewed AEM Development - Guidelines and Best Practices and Best Practices for Assets Performance. Also there is lot of logical dependencies in code on path which is OOTB and should not be modified and something like this has never come into our picture. I am assuming if cust...
Hi,The versioning also works in Touch UI. review this for more detail - https://docs.adobe.com/docs/en/aem/6-3/author/assets/managing-assets-touch-ui.html#Asset VersioningIn fact all new updates and new additions are now in Touch-UI.Thanks,Gaurav