LIbreOffice Draw Export as image: ONLY BLACK AND WHITE

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#1

I have a multi color box diagram in LibreOffice Draw 7.3.7.2 ; (linux Mint 21.1).

When i go to ==>File==>Export… and i Choose an image format from the selection dialog in the lower right, my color box and connections diagram saves only as B&W using bmp. Despite the fact that the bmp export dialog chooses “true 24 bit color”.

What is wrong?
(Note: the png, gif, and jpeg all do export in color).

#2

With me a diagram (bmp) is in color:

94714 HB Diagramm.bmp (941,4 KB)

Version: 7.5.5.2 (X86_64) / LibreOffice Community
Build ID: ca8fe7424262805f223b9a2334bc7181abbcbf5e
CPU threads: 8; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL: win
Locale: de-DE (de_DE); UI: de-DE
Calc: CL threaded

First steps to take before submitting a bug

#3

In Windows 11, I tested LibreOffice version 7.3.7.2 export to BMP:

  • If I select 24 bit colour, I get 85 greyscale levels
  • If I select 8 bit colour, I get 116 colours, file size 4.64 kb
  • If I select 4 bit colour, I get 233 colours, file size 28kb (see tdf#135303)
  • If I select 8 bit greyscale, I get 233 colours, file size 37kb

In LibreOffice 7.5.5.1

  • If I select 24 bit colour, I get 580 greyscale levels
  • If I select 8 bit colour, I get 69 colours
    If I select 8 bit greyscale I get 72 greyscale levels

There are fewer colour bit choices in 7.5.5.1 so I assume the filter was updated.

The real question is why you would want to use bmp format, png is a much better choice.
Cheers, Al

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#4

Same with me:
Version: 7.4.3.2 / LibreOffice Community
Build ID: 40(Build:2)
CPU threads: 1; OS: Linux 5.14; UI render: default; VCL: gtk3
Locale: es-MX (en_US.UTF-8); UI: en-US
Calc: threaded

1 Like
#5

Thank you @LeroyG and @EarnestAl ; I am seeing the same thing! It’s ONLY the 24 bit “true color” setting that outputs greyscale! A lower color setting outputs the vivid color bmp image.
(I don’t want bmp per se, but sometimes i want an image with white background for my drawing elements, so i find jpeg and bmp export with white background, whereas png exports only the drawing elements and i have to postprocess with imagemagick “convert” utility.)

I think it’s a bug b/c “true color” setting shouldn’t be greyscale.
Thanks!

#6

Just unmark Save transparency.
image

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