While Atril is certainly a PDF reader, it also does other files (like epub), too. When Caja displays a directory of files, that “Atril properties” extension gets info on all the Atril files listed. Let me know if you are able to replicate the problem. It would seem to me that the problem is in Caja since the tmp files are only created when it’s open.
No “Atril-thumbnailer-?” files were created. STILL LATER: Replaced checkmark next to “Atril Properties” in Caja. The only thing I haven’t tried is opening a pdf file, closing Caja, letting the file be open for some time, closing the file, reopening Caja and checking to see if the tmp files were created while Caja was closed. There seems to be some conflict between Caja and Atril. “Atril-thumbnailer-?” files immediately began to be created in tmp folder. Opened second Caja and went to documents folder. Not sure what removing that checkmark will do to the performance of the document viewer? Jim This solves my problem on a temporary basis. I unchecked the box next to “Atril Properties.” I then opened a second instance of Caja. I opened Caja and went to Edit>Preferences and went to the Extensions tab.
