Issue 19696 - export to PDF version 1.3 / reduce ("flatten") transparency for PDF-export (to support older PDF-viewers)
Summary: export to PDF version 1.3 / reduce ("flatten") transparency for PDF-export (t...
Alias: None
Product: gsl
Classification: Code
Component: code (show other issues)
Version: OOo 1.1 RC4
Hardware: All All
: P3 Trivial (vote)
Target Milestone: not determined
Assignee: requirements
QA Contact: issues@gsl
Keywords: oooqa, rfe_eval_ok
: 49669 68540 (view as issue list)
Depends on:
Reported: 2003-09-17 13:43 UTC by damscot
Modified: 2007-03-09 15:53 UTC (History)
3 users (show)

See Also:
Latest Confirmation in: ---
Developer Difficulty: ---

Test case of the bug (sxw+pdf+gif/png) (1.46 MB, application/octet-stream)
2003-09-17 13:45 UTC, damscot
no flags Details

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Description damscot 2003-09-17 13:43:08 UTC
I've got the following issue on pdf export:

I build a :

including a "essai.sxw" document with:

1 Gif image, 2 PNG images with transparency,
3 overlapped box with different transparency,
some 3D forms.
same as above but placed inside a OLE openoffice draw object

When exporting in PDF, i've got a "essai.pdf"
-GIF file is not displayed
-where all transparency is removed (masking overlapp)
-3D forms are not displayed
This is true for part I. and part II.

When printing on a postcript file (using traditional printer) I've got a warning
from openoffice saying that transparency information can take a long time to be
printed. Here there is two choice:

1. Answer YES: "ignoring the transparency"
It will create a big ps file (about 15Mo). Then using the ps2pdf function, it
creates the file "essai_from_ps_without_transp_info.pdf". This file provide good
result (GIF, transparency, 3D Forms) except regarding transparency inside the
OLE openoffice draw object where transparency is not manage.

2. Answer NO: "do not ignore the transparency"
It will create a big ps file (about 17Mo). Then using the ps2pdf function, it
creates the file "essai_from_ps_with_transp_info.pdf". This file provide
expected result: everything OK !!

All used file and documents can be found in the testcase (except big postcript

This issue can be eventually attached to bug 11213.

Comment 1 damscot 2003-09-17 13:45:36 UTC
Created attachment 9412 [details]
Test case of the bug (sxw+pdf+gif/png)
Comment 2 christof.pintaske 2003-09-18 09:36:27 UTC
cp->pl: looks like a bunch of issues. please have a look at it / dispatch.
Comment 3 damscot 2003-09-23 07:43:25 UTC
Using Acrobat Reader 5.0.5,
the display is correct for all pdf.

It seems that openoffice creates PDF document that only Acrobat Reader
5.0 and sup. can read without any problem. The PDF portability is
crutial for a such multi-platform/OS application that is openoffice.

However ps2pdf is able to create pdf that can be correctly displayed
with Acrobat reader 4.
Comment 4 philipp.lohmann 2003-10-08 13:54:00 UTC
OOo produces PDF-1.4. Acrobat 4 reads PDF-1.3. It does not make use of
the 1.4 features (alpha transparency), although it displays as much as
it can. This is a feature request fo OOo to produce PDF-1.3 optionally.
Comment 5 philipp.lohmann 2003-10-08 13:54:42 UTC
pl->bh: please handle this feature request.
Comment 6 zumbi 2004-07-19 09:58:17 UTC

A few comments about the transparency issue...

It's true that PDF exported files with transparent images don't show well
with xpdf 3.00, while there is no issue with Acrobat Reader 5.05
(I'm using OOo 1.1.1).

Actually, this is not at all an issue with,
but with xpdf that does support PDF 1.5 but doesn't support
transparency yet. Here's a word I got from the xpdf developer:

"Xpdf doesn't support transparency yet.  I'm planning to work on that
fairly soon." (Jul 19, 2004).


Comment 7 lohmaier 2004-10-23 18:25:50 UTC
changing summary to actually reflect the RFE.

original summary: "direct PDF export doesn't handle GIF, transparency and 3D forms"
Comment 8 lohmaier 2005-05-22 23:27:01 UTC
*** Issue 49669 has been marked as a duplicate of this issue. ***
Comment 9 zumbi 2005-08-18 08:03:24 UTC
Good news: xpdf 3.01 now seems to display exported PDF documents well.
No more color boxes enclosing tranparent images! xpdf 3.00 didn't.
Comment 10 lohmaier 2006-08-12 12:33:08 UTC
*** Issue 68540 has been marked as a duplicate of this issue. ***
Comment 11 pagalmes.lists 2007-03-09 15:28:54 UTC
Is this issue still relevant?
Comment 12 philipp.lohmann 2007-03-09 15:53:02 UTC
I think since all relevant PDF viewers support at least PDF 1.4 including
transparency nowadays, we don't really have a need for this anymore.
Comment 13 philipp.lohmann 2007-03-09 15:53:42 UTC