Bug Hunting Session
Bug 55123 - Impress imports ppt or pptx over 5.8Mb as text file
Summary: Impress imports ppt or pptx over 5.8Mb as text file
Status: RESOLVED WORKSFORME
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
Version:
(earliest affected)
3.5.6.2 release
Hardware: x86-64 (AMD64) Linux (All)
: medium critical
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-09-19 21:42 UTC by ojar
Modified: 2012-10-04 08:58 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:


Attachments
Abrt crash dump to file for 1 instance of the crash. (124.80 KB, text/plain)
2012-09-19 21:42 UTC, ojar
Details

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Description ojar 2012-09-19 21:42:33 UTC
Created attachment 67417 [details]
Abrt crash dump to file for 1 instance of the crash.

I am using Fedora 16 which I installed via tar from the LO download site and not via the yum Fedora repository.

Impress imports ppt or pptx files that are over 5.8Mb as text files and presents a dialog box to select text file encoding. Selection of the encoding type creates a presentation with a plain text document on each "page" - definitely not a presentation. Smaller presentations open properly.

I have opened the very document via Microsoft Powerpoint in a VM.

I have seen this reported on several web sites but not as a bug.

This first drew my attention when I modified a smaller Presentation, impress, was unable to perform all the changes I required and the switched to MS PPT, on day prior to presentation I could not open the file as a Presentation using Impress. MS PPT could open the document.

I made a copy and removed more and more slides/saving until I could open the document as a Presentation - I first was able to open a 800K Presentation successfully.

One person on the web blog suggested that there was a size limitation and this was affecting the Spreadsheet product also.

At around 5.8Mb I was able to open the Presentation file, making modifications by adding text would crash Impress - talking about 5 crashes in one morning - crash which have generated abrt crash reports :-

I was attempting to download the LibreOffice debug packages but I could not locate the packages ....
Comment 1 ojar 2012-09-19 21:48:56 UTC
I have originally asked LOffice a question @
http://ask.libreoffice.org/question/6113/impress-not-able-to-open-microsoft-powerpoint-file/

which contains links to other reports of this bug.
Comment 2 Michael Meeks 2012-09-20 09:40:28 UTC
may be related to bug#54761# - I suspect our OLE2 detection / filter selection / sniffing is awry for larger files (somehow) - they get detected as text it seems.

Can you attach a sample .ppt that fails for you ?
Comment 3 ojar 2012-09-21 12:47:21 UTC
Here is a sample file .... can you please delete after use.

There is a 3Mb limit on the upload attachment page.

I have uploaded to a public site and I am now providing the download link :-
http://www.adrive.com/public/kxFujG/ETSTC_TDI7.ppt.zip

Name:	ETSTC_TDI7.ppt.zip
Size:	7.8MB (8191179 bytes)
Modified:	2012-09-21 05:43:14
Uploaded:	2012-09-21 05:43:14
md5:	10612862d267eabb537a454fa1e6a067
Shared:	Publicly Shared
URL:	http://www.adrive.com/public/kxFujG/ETSTC_TDI7.ppt.zip
Downloads:	0
Expires:	2012-10-05


Thanks.
Comment 4 Michael Meeks 2012-10-01 09:29:49 UTC
I've got the file - so you can take it down; thanks for that ! :-) my md5sum is:

641012333d13fb9e736102e3360d37f8

and the size is 10015232 bytes.

Unfortunately, with a master build it detects and imports perfectly :-) With 3.6.1.2 it also imports correctly with no issues.

As such - this looks like an interesting legacy 3.5.x problem - but since we've just done our last planned release of 3.5.x unless we can easily identify what caused the issue there, I'd strongly recommend upgrading to 3.6.x which includes a lot of other key performance and stability fixes in OLE2 / PPT document handling.

Thanks so much for reporting the bug though ! much appreciated - as you say it's great to condense feedback from the forums and into bugzilla.
Comment 5 ojar 2012-10-03 17:17:51 UTC
I have upgraded to LibreOffice  3.6 and the bug does not seen in the later version.

This bug can be closed, as the resolution can be to upgrade the LO from v3.5 to v3.6
Comment 6 Michael Meeks 2012-10-04 08:58:43 UTC
Great - hope you enjoy the new release :-)