openpaperwork
OCR does not work in background
When I select a document, then select to redo OCR (actually, OCR seems to run on the documents for the first time then, see https://github.com/openpaperwork/paperwork/issues/722), then switch to another document, OCR of that document stops, and is only resumed when I reselect that document (at least, it looks like that to me).
This is with paperwork 1.2.2 (flatpak) on Linux Mint 18.3.
Nah, don't worry, it keeps working in the background. Actually, there is even no way at all for Paperwork to suspend/stop the OCR (no API in Pyocr for that).
You can make sure of that by running top in another terminal (or gnome-system-monitor for instance). You should see a process tesseract using 100% of one of your CPU.
I get a different thing in top:
Click on document, select redo ocr, confirm. tesseract starts to run. Click on second document. tesseract still runs for a couple of seconds. Then stops. Re-select first document, tesseract starts running again. Animation with pages changing size and paper plane again. Only then tesseract finishes.
Does that happen right after you tried importing documents, or did you restart Paperwork in the meantime ?
I had to restart it, because it wouldn't show any documents (edit: except for the documentation pdf), probably due to that 'too many open files' issue.