[Libreoffice-bugs] [Bug 133356] New: [FILESAVE] Saving as .docx changes pagestyles & can't round-trip

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=133356

            Bug ID: 133356
           Summary: [FILESAVE] Saving as .docx changes pagestyles & can't
                    round-trip
           Product: LibreOffice
           Version: 6.4.2.2 release
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Writer
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: luke.kendall at gmail.com

Created attachment 161245
  --> https://bugs.documentfoundation.org/attachment.cgi?id=161245&action=edit
Zip file with two short sample documents

Please see the attached source document WTKDP-BadDocxGen.odt and the bad .docx
file generated by Save As from:

Version: 6.4.3.2
Build ID: 747b5d0ebf89f41c860ec2a39efd7cb15b54f2d8
CPU threads: 4; OS: Linux 4.4; UI render: default; VCL: x11; 
Locale: en-GB (en_AU.UTF-8); UI-Language: en-US
Calc: threaded

This relates to a separate bug, 133334, now fixed I believe for 6.5.

The additional aspects seem to be separate bugs, so I'm filing this bug report.

I believe that because page styles are important, when Writer produces a .docx
it should produce a file that when it reads it back in, should be basically the
same.  Even if that requires some additional OOo-only XML attributes need to be
written into the file that only Writer knows how to interpret, to preserve the
information.

I also believe the page styles set should be preserved. I feel that if my
document only uses four page styles, then the .docx should be laid out using
those four styles, and when read back in to Writer, it should recreate those
same four styles with the same dimensions and properties.

Instead, saving to .docx generates more page styles than are used, as well as
making unexpected changes to the page layouts.

Some examples:
1) All my page sizes are set to the same dimension, 360 x 576 pts (for a 5"x8"
book).
When converted, all converted page sizes are 360 x 575 pts.

2) Most pages are set with margins Inner, Outer, Top, Bottom: 66 36 24 21
   In the .docx these are mostly changed to: 66 36 0 0

3) Pages with footers in the original are set with Spacing 14.2pt and Height
14.2 pt, and dynamic spacing and autofit height off.
   In the converted .docx, these are changed to Spacing 21.1pt and Height 2.9
pt, and dynamic spacing and autofit height ON.

4) I have a no-header-or-footer style for the first page of a chapter.
   These pages generally convert across incorrectly and gain a header and
footer.
   However, even the page styles that have no header or footer visible, appear
in the Manage Styles with Header and Footer turned ON

I don't understand why the conversion doesn't embed enough information so that
when writer's .docx is read back by Writer, the page styles are preserved -
both the settings, and the names, and the number.

In my book, I have just 4 page styles defined and used. After saving to .docx
and reopening, not only are all the page styles altered, but there are now 149
plus the default style.

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