I noticed that DOPUS does not display in the metadata panel all the metadata groups that the .pdf actually has, only those that can be edited. For example, some canonical name (.pdf) metadata groups are not displayed:
Description; Origin; Content; File (FileSystem)
Using the "File Meta Association Manager" software I was able to associate the canonical name "System.Document.ClientID" of the key "{276D7BB0-5B34-4FB0-AA4B-158ED12A1809},100" with the .pdf extension. Updating the registry; The Windows Explorer metadata panel shows this new editable canonical name associated with the extension, but in DOPUS it does not, only through the column. I need the DOPUS metadata panel to show all metadata groups for the extension. Is there such a possibility? If there is, how much does it cost?
I created a custom column, but how do I insert the metadata via the UI, other than via the command line? Will this custom column created in Evaluator also be shown in the metadata panel?
About inserting metadata into a custom column. I don't know how to do it, I need someone to do it. Can you point me to someone to create this function?
Yes, the column I created, I needed a UI to modify and/or insert the metadata for that column. We are at 5 people in my sector, some of them will not understand command line, so the UI would be interesting.
How should I go about developing this? Who should I contact?
If the metadata fields you are looking for are not included in DOpus' list of columns, I guess an Evaluator Column won't help. You will have to write (or find someone to write) a Script Column that calls an external tool to extract those data and format them for the column. There's a command line tool called ExifTool that provides a lot of fields for PDFs as well. Note that the resulting column(s) will probably slow down your display notably.
I'm not a programmer, but I think that the custom column metadata could be saved and loaded in a .csv file only in DOPUS, in a specific directory associated with the chosen column and the file.