https://bugs.documentfoundation.org/show_bug.cgi?id=150076

Stéphane Guillou (stragu) <[email protected]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
             Blocks|                            |108355
                 CC|                            |stephane.guillou@libreoffic
                   |                            |e.org
           Keywords|                            |filter:pdf
           See Also|                            |https://bugs.documentfounda
                   |                            |tion.org/show_bug.cgi?id=12
                   |                            |4539
     Ever confirmed|0                           |1
            Summary|PDF image used as           |PDF used as background in
                   |background in draw is       |Draw is exported as low
                   |exported as (low            |resolution image (but PDF
                   |resolution) image when      |inserted as image is
                   |doing a PDF export          |exported as vector)

--- Comment #4 from Stéphane Guillou (stragu) 
<[email protected]> ---
(In reply to Callegar from comment #3)
> If you use `insert → image` from the menu, and you insert the PDF image in
> the page rather than as the background of the page, then the PDF export
> works properly maintaining the vector nature of the image. Hence, the
> behavior for the background image is at best not consistent and from a user
> point of view it is really quite confusing why `Page → Set image as
> background` should use pdfium in a different way from `insert → image`.
> 
> Furthermore, if you insert an SVG image as the background, then the PDF
> export also works properly. So again there is an inconsistency in how LibO
> treats two different vector formats.
Reproduced as described. Right click > Page > Background > PDF results in bad
bitmap resolution when exported, whereas Insert > Image > PDF keeps it as
vector.

Interestingly, when trying to create a sample document, I also noticed that if
I insert the PDF as a page background first, and then on another page insert
the same PDF as an image, I get bad resolution on _both_ in the PDF export.
So to compare image insert vs page background, work on two files separately.

Version: 24.8.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 53c5d570cab036b23f4969b858a648c8f0c24f93
CPU threads: 8; OS: Linux 6.5; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-US
Calc: CL threaded


Referenced Bugs:

https://bugs.documentfoundation.org/show_bug.cgi?id=108355
[Bug 108355] [META] Slide background bugs and enhancements
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