[Libreoffice-bugs] [Bug 108667] New: Fonts blow up Calc document by factor 30

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=108667

            Bug ID: 108667
           Summary: Fonts blow up Calc document by factor 30
           Product: LibreOffice
           Version: 5.2.7.2 release
          Hardware: x86-64 (AMD64)
                OS: Windows (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Calc
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: hermann at rochholz.de

Created attachment 134176
  --> https://bugs.documentfoundation.org/attachment.cgi?id=134176&action=edit
A screenshot of the container big (left) small  file (right)

Hello!
I created a calculation for pressure losses in tubes. 
I had to send it via mail and some pics were embedded.
The file had a size of 5 MB - to reduce file size I deleted 
the pictures - and the size was 4.7 MB-a simple calc document!

To overcome problem I found a solution:
save it as "...xlsx" and convert back to "...ods".
The ods-file shrunk from 4.745025 MB to  0.139921 MB.

OK how did I see that's the font files? 
I renamed .ods to .zip. - All LO-files are zip-containers 
Then I searched for the largest files - and a horrible amount of 
"ttf" fonts were in the container in the directory "fonts".

After conversion the fonts vanished. 

I'll attach screenshots. I do not know if it makes sense to attach old (5MB)
and new ods. I can deliver it by PN.

Kind regards Hermann

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