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      <base href="https://bugs.documentfoundation.org/">
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_UNCONFIRMED "
   title="UNCONFIRMED - Displaying false preview when using pptx files."
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=107376">107376</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Displaying false preview when using pptx files.
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>LibreOffice
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>5.3.2.2 release
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>UNCONFIRMED
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>LibreOffice
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>libreoffice-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>philipp.petschner@celum.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Description:
There are the same problems when using the Libreoffice program or Libreoffice
as command line. Libreoffice displays false previews in the sidebar on the
left. This is the same false preview as the command line conversion to pdf
does. For example: gradient from powerpoint is not shown, headers / logos are
not visible at all.

Steps to Reproduce:
1.open the pptx file and compare it to powerpoint (false preview is shown in
the left sidebar.
2.use libreoffice as command line and convert the pptx file to pdf

soffice.exe --headless --convert-to pdf originalFileRef

(or open the file with libreoffice and take a look at the previews in the left
sidebar)

Actual Results:  
false previews: headers are missing, gradients missing, ...

Expected Results:
same result as powerpoint shows. (The headers are actually shown in the big
view but not in the small preview)


Reproducible: Always

User Profile Reset: No

Additional Info:
I would be happy to send you some example files. And show you the problem in
detail.
<a href="https://damtest.danfoss.com/pinaccess/showpin.do?pinCode=Pii4EdafAFWy">https://damtest.danfoss.com/pinaccess/showpin.do?pinCode=Pii4EdafAFWy</a>
<a href="https://damtest.danfoss.com/pinaccess/showpin.do?pinCode=y3wadmkUhE2G">https://damtest.danfoss.com/pinaccess/showpin.do?pinCode=y3wadmkUhE2G</a>



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