LibreTraining <> changed:

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--- Comment #10 from LibreTraining <> ---
(In reply to Michael Stahl from comment #9)
> PDF does not embed fonts, it embeds those glyphs which are used.
> LibreOffice is an editing application and so importing only a subset
> of a font is frustrating and useless in practice because you can't
> edit the document to add letters that weren't used in the original PDF.

PDFs can embed full and complete installable fonts.

The fonts must have the embedding setting in the font set to Installable.
For example, the Liberation and Noto fonts included with LO are Installable.

The application creating the PDF must embed the entire font file.
Adobe applications will not do this no matter if the font allows it.
There is no reason why LibreOffice cannot be enabled to embed an entire font in
a PDF when it is clearly allowed by the font creator.

The application reading the PDF must support installing the embedded font file.
Some PDF readers will install the embedded fonts.
Again, there is no reason why LibreOffice when importing a PDF cannot be
enabled to install embedded fonts when the fonts are properly embedded, and the
font allows it.

The font sub-setting that goes on is either caused by the fonts' internal
embedding settings restrictions, and/or the application doing the PDF creation
and font embedding either restricts it or cannot do it.
Sometimes the font sub-setting is a user option setting which is designed to
minimize the size of the PDF. Just like ODT files with embedded fonts, PDF
files with embedded full font files can be quite large.

So this is possible.
It is not a limitation of the PDF format.
It is a limitation of LibreOffice.

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