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

Bug #789762 reported by Ab3L
This bug report is a duplicate of:  Bug #819995: "Print to file" PDF metadata broken. Edit Remove
22
This bug affects 4 people
Affects Status Importance Assigned to Milestone
Simple Scan
Expired
Undecided
Unassigned
simple-scan (Ubuntu)
Expired
Undecided
Unassigned

Bug Description

Binary package hint: simple-scan

Hello,
I'm scanning some documents that I save in PDF format.
This is I thin a minor bug, but the day of creation and modification is always "gio 01 gen 1970 00:59:59 CET" (Thu 01 Jan 1970 00:59:59 CET) and not today.
I'm running 11.04 - the Natty Narwhal, and here are informations about apt-cache policy:
simple-scan:
  Installato: 2.32.0.1-0ubuntu2
  Candidato: 2.32.0.1-0ubuntu2
  Tabella versione:
 *** 2.32.0.1-0ubuntu2 0
        500 http://ch.archive.ubuntu.com/ubuntu/ natty/main i386 Packages
        100 /var/lib/dpkg/status

Regards.
Ab3l

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: simple-scan 2.32.0.1-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Sun May 29 07:13:47 2011
DriverPackageVersions:
 libsane 1.0.22-2ubuntu1
 libsane-extras N/A
 hplip 3.11.1-2ubuntu2
 hpoj N/A
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
MachineType: HP-Pavilion RR820AA-UUZ m7770.ch
ProcEnviron:
 LANGUAGE=it_CH:en
 LANG=it_CH.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=0edcaa3f-0ea6-433b-a178-562cb5d3a086 ro quiet splash vt.handoff=7
SimpleScanLog:

SourcePackage: simple-scan
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/24/2006
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 5.06
dmi.board.name: LEONITE
dmi.board.vendor: ASUSTek Computer INC.
dmi.board.version: 5.00
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: 1111
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr5.06:bd11/24/2006:svnHP-Pavilion:pnRR820AA-UUZm7770.ch:pvr:rvnASUSTekComputerINC.:rnLEONITE:rvr5.00:cvnHewlett-Packard:ct3:cvr1111:
dmi.product.name: RR820AA-UUZ m7770.ch
dmi.sys.vendor: HP-Pavilion

Revision history for this message
Ab3L (himura-kenshin) wrote :
Revision history for this message
Marcel Stimberg (marcelstimberg) wrote :

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.

Changed in simple-scan (Ubuntu):
status: New → Confirmed
summary: - Day of creation and modification
+ PDF metadata: Date of creation and modification is incorrectly set (or
+ not set at all)
Revision history for this message
Michael Kreuzer (penulci) wrote :

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

Revision history for this message
Michael Nagel (nailor) wrote :

this will not be fixed in the packaging of the application

Changed in simple-scan (Ubuntu):
status: Confirmed → Invalid
Revision history for this message
Marcel Stimberg (marcelstimberg) wrote :

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.

Changed in simple-scan (Ubuntu):
status: Invalid → Confirmed
Revision history for this message
Michael Nagel (nailor) wrote :

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

Revision history for this message
Michael Nagel (nailor) wrote :

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).

Michael Nagel (nailor)
Changed in simple-scan:
status: New → Incomplete
Changed in simple-scan (Ubuntu):
status: Confirmed → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

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

Changed in simple-scan:
status: Incomplete → Expired
Revision history for this message
Launchpad Janitor (janitor) wrote :

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

Changed in simple-scan (Ubuntu):
status: Incomplete → Expired
Revision history for this message
Michael Kreuzer (penulci) wrote :

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 ;-)

Revision history for this message
Alf HP Lund (alf-c) wrote :

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

Revision history for this message
Ab3L (himura-kenshin) wrote : Re: Re: what a pleasant surprise

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To: <email address hidden>
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Revision history for this message
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Revision history for this message
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Revision history for this message
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