PDF metadata: Date of creation and modification is incorrectly set (or not set at all)

Thank you for your bug report. I can confirm this issue on Ubuntu 11.04.
For clarification: This is about the creation/modification metadata within the PDF document, not about the general file creation/modification date.

I can confirm this issue also for Natty 11.04 64bit but not with simple-scan but any PDF for instance produced by cairo, using "STRG-P" Print to file, like from Firefox, thunderbird and so on.
Going back to my old PDFs I saw this problem occurs for quite some time that all these PDFs have "Thu 01 Jan 1970 00:59:59 CET" as date of creation and last date of modification.

Greetings, Michael

this will not be fixed in the packaging of the application

Hi Michael,

I reverted the status back to 'Confirmed' -- the Ubuntu bug status is not only for packaging bugs (as your comments seems to imply), but for generally tracking the status of a bug in the Ubuntu package (e.g. it might have been fixed upstream but the patch is not in Ubuntu yet, or there is a patch specific for Ubuntu that is not upstream). See https://wiki.ubuntu.com/Bugs/Status for details.

That said, this is definitely a bug that should be fixed upstream.

Hi Marcel,

you are probably right and that is the way it is intended to work and that should scale well for "big packages", e.g. Libre Office, ...

On the other hand, there are over 300 open bugs against either Simple Scan itself or the Simple Scan Ubuntu package right now, and that is after I merged lots and lots of duplicates. There is currently one developer (Robert Ancell) and he has moved on to other priorities recently. So there is no chance these bugs are all properly cared for, even less so in a timely manner.

Having issues like this pop up twice is in my opinion bad, because it produces overhead in two ways:
- direct overhead: to fix it "upstream" first *and then additionally track the progress of the fix from upstream into the package* -- given the current situation, we should try to get some bugs fixed at all and not waste energy on something (in my opinion comparatively less important) like tracking way of the fix back into the package
- indirect overhead: having more and more issues show up in all list makes working with these lists slower, as these issues distract and/or make it harder to find the relevant issue

So I think technically you are right, but sticking to the letter of the law is in my opinion counterproductive in this case. However, this is not the place to discuss this. Let bug #896729 (just created before submitting this comment) be the place to discuss this further and lets work on that problem with the metadata here...

Best Regards
Michael

Could you check if this happens with other PDF-creating programs (based on cairo), too? Because if it is, then this is either a mis-use of the PDF creation API (lack of setting that date) or a problem within cairo (if it is specified to use the current date).

[Expired for Simple Scan because there has been no activity for 60 days.]

[Expired for simple-scan (Ubuntu) because there has been no activity for 60 days.]

I still see this issue in 12.04 and it seems the bug is based on the Cairo lib, since it also occurs on other programs creating PDFs based on libcairo like Inkscape.

I filed a very similar bugreport (Bug #819995) about one year ago facing this issue.
Meanwhile I edit PDF Metadata manually ;-)

I can see this occuring in Ubuntu 12.10. Plus everything penulci said.

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