Issue 101707

Summary:

Artefacts appear on background in created pdf

Product:

Impress

Reporter:

kolubinowicki <kolubinowicki>

Component:

save-export

Assignee:

AOO issues mailing list <issues>

Status:

CONFIRMED ---

QA Contact:

Severity:

Trivial

Priority:

CC:

ace_dent, clippka, issues

Version:

DEV300m47

Keywords:

oooqa

Target Milestone:

---

Hardware:

OS:

Windows XP

Issue Type:

DEFECT

Latest Confirmation in:

---

Developer Difficulty:

---

Attachments:

Description	Flags
Movie file (codec xvid)	none
slide exported to pdf	none
created pdffile	none
screenshot of background before export	none
screenshot of artefacts in adobe reader	none
PDF created in 3.0.1	none
PDF created in 3.1.0	none

Description kolubinowicki 2009-05-09 12:12:24 UTC

When we export a sample slide to pdf format, artefacts appears on background.

Artefacts appears in programs(tested):
Adobe Reader 9.1
Foxit Reader 3.0 build 1506
...
but not in Gsview 4.9 + Ghostscipt 8.64
 
Please look into attachement for more info.

Comment 1 kolubinowicki 2009-05-09 12:15:30 UTC

Created attachment 62114 [details]
Movie file (codec xvid)

Comment 2 kolubinowicki 2009-05-09 12:16:18 UTC

Created attachment 62115 [details]
slide exported to pdf

Comment 3 kolubinowicki 2009-05-09 12:17:04 UTC

Created attachment 62116 [details]
created pdffile

Comment 4 kolubinowicki 2009-05-09 12:18:12 UTC

Created attachment 62117 [details]
screenshot of background before export

Comment 5 kolubinowicki 2009-05-09 12:19:21 UTC

Created attachment 62118 [details]
screenshot of artefacts in adobe reader

Comment 6 deye 2009-05-09 21:01:09 UTC

I can confirm this on OO.o 3.1.0 (Linux).
How to reproduce:
1. Create a new empty presentation.
2. Go Format-->Page-->Background. Select a gradient and click OK.
3. Export to PDF and open it.

Comment 7 deye 2009-05-09 21:17:55 UTC

Apparently, this bug is connected with changes made to linewidths in regard to
antialiasing. This did not happen in OO.o 3.0.1.
In 3.0.1 lines were exported differently than in 3.1.0.
For example line "0.001 cm" was rendered as if it were a "0 cm" width line, that
is a default (1 pixel width?) line. Now, in 3.1, this line is almost invisible
both in PNG and PDF. It indicates the difference between 3.0.1 and 3.1.0.
If you open this pdf in Draw (with pdfimport extension installed), you will see
invisible (or transparent?) lines with zero (=default) width. But background is
white and you can see thin white circles.

Comment 8 ace_dent 2009-05-09 23:37:22 UTC

This is a side effect of other problems in how gradients are exported.
I would suggest a duplicate of Issue 65970 ...

Comment 9 deye 2009-05-10 11:00:32 UTC

Sorry, I was wrong.
Version 3.1.0 and 3.0.1 give the same result when exporting to PDG. Attachments
310.pdf and 301.pdf are for 3.1.0 and 3.0.1 respectively.

Comment 10 deye 2009-05-10 11:01:26 UTC

Created attachment 62129 [details]
PDF created in 3.0.1

Comment 11 deye 2009-05-10 11:01:56 UTC

Created attachment 62130 [details]
PDF created in 3.1.0

Comment 12 wolframgarten 2009-05-11 11:41:30 UTC

Reproducible. Reassigned.

Comment 13 ace_dent 2009-11-25 00:02:22 UTC

This is a duplicate of:
Issue 65970 - Gradients have artifacts in pdf and slideshow

I would suggest closing and combining efforts...

Comment 14 florut 2010-02-16 10:40:39 UTC

Yes, would be great to close this one and continue to discuss about this in
issue n°65970 (as I did)