Allow downloading full documents as zip file

[jdittrich]

Story: For offline viewing, I would like to download a full document

Current state: I need to open the single pages and download and name them separately.

Desired state:: I would like to download all images as consecutively numbered files in a zip file, e.g. by clicking the download button in the document overview view.

[stweil]

Many libraries already offer a PDF file for the whole document (ideally also with searchable text) which allows to read it much easier than having a ZIP file with the page images. I think it's also possible to offer the desired ZIP file. Maybe it just has to be added in the DOWNLOAD file section of the METS file. So it depends on the provider of this METS file which kinds of downloads are possible.

Personally I use the mentioned METS files (or the IIIF manifest if available) to get the download addresses for the page images. Then I can easily download a subset or all of them.

[stweil]

I just tried to offer a ZIP download with this METS file. It works.

The bad news is that it looks like the DFG-Viewer (or more precisely Kitodo.Presentation) only offers a single download file although my METS file includes two (PDF and ZIP). This might be a bug.